diff --git a/packages/taro-api/src/tools.js b/packages/taro-api/src/tools.js
index 19344033d37e..fc1c856fb9dc 100644
--- a/packages/taro-api/src/tools.js
+++ b/packages/taro-api/src/tools.js
@@ -54,7 +54,7 @@ export function getPxTransform (taro) {
       throw new Error(`deviceRatio 配置中不存在 ${designWidth} 的设置！`)
     }
     const formatSize = ~~size
-    let rootValue = 1 / config.deviceRatio[designWidth]
+    let rootValue = 1 / deviceRatio[designWidth]
     switch (config.targetUnit) {
       case 'rem':
         rootValue *= baseFontSize * 2
diff --git a/packages/taro-webpack-runner/src/__tests__/__snapshots__/babel.spec.ts.snap b/packages/taro-webpack-runner/src/__tests__/__snapshots__/babel.spec.ts.snap
index 5fc18fed2074..17c830cab608 100644
--- a/packages/taro-webpack-runner/src/__tests__/__snapshots__/babel.spec.ts.snap
+++ b/packages/taro-webpack-runner/src/__tests__/__snapshots__/babel.spec.ts.snap
@@ -885,7 +885,7 @@ exports[`babel should convert do expressions 2`] = `
                 throw new Error("deviceRatio 配置中不存在 ".concat(designWidth, " 的设置！"));
             }
             var formatSize = ~~size;
-            var rootValue = 1 / config.deviceRatio[designWidth];
+            var rootValue = 1 / deviceRatio[designWidth];
             switch (config.targetUnit) {
               case "rem":
                 rootValue *= baseFontSize * 2;
diff --git a/packages/taro-webpack-runner/src/__tests__/__snapshots__/compiler-macros.spec.ts.snap b/packages/taro-webpack-runner/src/__tests__/__snapshots__/compiler-macros.spec.ts.snap
index b91d6827db0d..f4f7ea3e5899 100644
--- a/packages/taro-webpack-runner/src/__tests__/__snapshots__/compiler-macros.spec.ts.snap
+++ b/packages/taro-webpack-runner/src/__tests__/__snapshots__/compiler-macros.spec.ts.snap
@@ -880,7 +880,7 @@ exports[`compiler-macros - defineAppConfig and definePageConfig should read app
                 throw new Error("deviceRatio 配置中不存在 ".concat(designWidth, " 的设置！"));
             }
             var formatSize = ~~size;
-            var rootValue = 1 / config.deviceRatio[designWidth];
+            var rootValue = 1 / deviceRatio[designWidth];
             switch (config.targetUnit) {
               case "rem":
                 rootValue *= baseFontSize * 2;
diff --git a/packages/taro-webpack-runner/src/__tests__/__snapshots__/config.spec.ts.snap b/packages/taro-webpack-runner/src/__tests__/__snapshots__/config.spec.ts.snap
index 2e1e926050db..3624fb5d2732 100644
--- a/packages/taro-webpack-runner/src/__tests__/__snapshots__/config.spec.ts.snap
+++ b/packages/taro-webpack-runner/src/__tests__/__snapshots__/config.spec.ts.snap
@@ -892,7 +892,7 @@ exports[`config should build from origin and pipe to output 2`] = `
                 throw new Error("deviceRatio 配置中不存在 ".concat(designWidth, " 的设置！"));
             }
             var formatSize = ~~size;
-            var rootValue = 1 / config.deviceRatio[designWidth];
+            var rootValue = 1 / deviceRatio[designWidth];
             switch (config.targetUnit) {
               case "rem":
                 rootValue *= baseFontSize * 2;
@@ -1827,7 +1827,7 @@ I m irrelevant.
                 throw new Error("deviceRatio 配置中不存在 ".concat(designWidth, " 的设置！"));
             }
             var formatSize = ~~size;
-            var rootValue = 1 / config.deviceRatio[designWidth];
+            var rootValue = 1 / deviceRatio[designWidth];
             switch (config.targetUnit) {
               case "rem":
                 rootValue *= baseFontSize * 2;
@@ -2762,7 +2762,7 @@ exports[`config should resolved alias 2`] = `
                 throw new Error("deviceRatio 配置中不存在 ".concat(designWidth, " 的设置！"));
             }
             var formatSize = ~~size;
-            var rootValue = 1 / config.deviceRatio[designWidth];
+            var rootValue = 1 / deviceRatio[designWidth];
             switch (config.targetUnit) {
               case "rem":
                 rootValue *= baseFontSize * 2;
diff --git a/packages/taro-webpack-runner/src/__tests__/__snapshots__/css-modules.spec.ts.snap b/packages/taro-webpack-runner/src/__tests__/__snapshots__/css-modules.spec.ts.snap
index 83749de69cab..3f70bdb374b6 100644
--- a/packages/taro-webpack-runner/src/__tests__/__snapshots__/css-modules.spec.ts.snap
+++ b/packages/taro-webpack-runner/src/__tests__/__snapshots__/css-modules.spec.ts.snap
@@ -911,7 +911,7 @@ exports[`css modules should use css modules with global mode 2`] = `
                 throw new Error("deviceRatio 配置中不存在 ".concat(designWidth, " 的设置！"));
             }
             var formatSize = ~~size;
-            var rootValue = 1 / config.deviceRatio[designWidth];
+            var rootValue = 1 / deviceRatio[designWidth];
             switch (config.targetUnit) {
               case "rem":
                 rootValue *= baseFontSize * 2;
@@ -1855,7 +1855,7 @@ exports[`css modules should use css modules with module mode 2`] = `
                 throw new Error("deviceRatio 配置中不存在 ".concat(designWidth, " 的设置！"));
             }
             var formatSize = ~~size;
-            var rootValue = 1 / config.deviceRatio[designWidth];
+            var rootValue = 1 / deviceRatio[designWidth];
             switch (config.targetUnit) {
               case "rem":
                 rootValue *= baseFontSize * 2;
diff --git a/packages/taro-webpack-runner/src/__tests__/__snapshots__/nerv.spec.ts.snap b/packages/taro-webpack-runner/src/__tests__/__snapshots__/nerv.spec.ts.snap
index 0444634e27fc..1b5a8f674a89 100644
--- a/packages/taro-webpack-runner/src/__tests__/__snapshots__/nerv.spec.ts.snap
+++ b/packages/taro-webpack-runner/src/__tests__/__snapshots__/nerv.spec.ts.snap
@@ -886,7 +886,7 @@ exports[`nerv should build nerv app 2`] = `
                 throw new Error("deviceRatio 配置中不存在 ".concat(designWidth, " 的设置！"));
             }
             var formatSize = ~~size;
-            var rootValue = 1 / config.deviceRatio[designWidth];
+            var rootValue = 1 / deviceRatio[designWidth];
             switch (config.targetUnit) {
               case "rem":
                 rootValue *= baseFontSize * 2;
diff --git a/packages/taro-webpack-runner/src/__tests__/__snapshots__/react.spec.ts.snap b/packages/taro-webpack-runner/src/__tests__/__snapshots__/react.spec.ts.snap
index 7d63b8fd6a2d..61cc4fda5192 100644
--- a/packages/taro-webpack-runner/src/__tests__/__snapshots__/react.spec.ts.snap
+++ b/packages/taro-webpack-runner/src/__tests__/__snapshots__/react.spec.ts.snap
@@ -892,7 +892,7 @@ exports[`react should build react app 2`] = `
                 throw new Error("deviceRatio 配置中不存在 ".concat(designWidth, " 的设置！"));
             }
             var formatSize = ~~size;
-            var rootValue = 1 / config.deviceRatio[designWidth];
+            var rootValue = 1 / deviceRatio[designWidth];
             switch (config.targetUnit) {
               case "rem":
                 rootValue *= baseFontSize * 2;
diff --git a/packages/taro-webpack-runner/src/__tests__/__snapshots__/sass.spec.ts.snap b/packages/taro-webpack-runner/src/__tests__/__snapshots__/sass.spec.ts.snap
index 6944bba58569..bcce22bfa5ee 100644
--- a/packages/taro-webpack-runner/src/__tests__/__snapshots__/sass.spec.ts.snap
+++ b/packages/taro-webpack-runner/src/__tests__/__snapshots__/sass.spec.ts.snap
@@ -867,7 +867,7 @@ exports[`sass should build app with sass 2`] = `
                 throw new Error("deviceRatio 配置中不存在 ".concat(designWidth, " 的设置！"));
             }
             var formatSize = ~~size;
-            var rootValue = 1 / config.deviceRatio[designWidth];
+            var rootValue = 1 / deviceRatio[designWidth];
             switch (config.targetUnit) {
               case "rem":
                 rootValue *= baseFontSize * 2;
@@ -1798,7 +1798,7 @@ exports[`sass should build app with scss 2`] = `
                 throw new Error("deviceRatio 配置中不存在 ".concat(designWidth, " 的设置！"));
             }
             var formatSize = ~~size;
-            var rootValue = 1 / config.deviceRatio[designWidth];
+            var rootValue = 1 / deviceRatio[designWidth];
             switch (config.targetUnit) {
               case "rem":
                 rootValue *= baseFontSize * 2;
@@ -2729,7 +2729,7 @@ exports[`sass should set global sass content with data 2`] = `
                 throw new Error("deviceRatio 配置中不存在 ".concat(designWidth, " 的设置！"));
             }
             var formatSize = ~~size;
-            var rootValue = 1 / config.deviceRatio[designWidth];
+            var rootValue = 1 / deviceRatio[designWidth];
             switch (config.targetUnit) {
               case "rem":
                 rootValue *= baseFontSize * 2;
@@ -3660,7 +3660,7 @@ exports[`sass should set global sass content with source & dir 2`] = `
                 throw new Error("deviceRatio 配置中不存在 ".concat(designWidth, " 的设置！"));
             }
             var formatSize = ~~size;
-            var rootValue = 1 / config.deviceRatio[designWidth];
+            var rootValue = 1 / deviceRatio[designWidth];
             switch (config.targetUnit) {
               case "rem":
                 rootValue *= baseFontSize * 2;
@@ -4591,7 +4591,7 @@ exports[`sass should set global sass content with source 2`] = `
                 throw new Error("deviceRatio 配置中不存在 ".concat(designWidth, " 的设置！"));
             }
             var formatSize = ~~size;
-            var rootValue = 1 / config.deviceRatio[designWidth];
+            var rootValue = 1 / deviceRatio[designWidth];
             switch (config.targetUnit) {
               case "rem":
                 rootValue *= baseFontSize * 2;
diff --git a/packages/taro-webpack-runner/src/__tests__/__snapshots__/subpackages.spec.ts.snap b/packages/taro-webpack-runner/src/__tests__/__snapshots__/subpackages.spec.ts.snap
index 2b0e53e1455f..be4e213e64d1 100644
--- a/packages/taro-webpack-runner/src/__tests__/__snapshots__/subpackages.spec.ts.snap
+++ b/packages/taro-webpack-runner/src/__tests__/__snapshots__/subpackages.spec.ts.snap
@@ -974,7 +974,7 @@ exports[`subpackages should process subpackages 2`] = `
                 throw new Error("deviceRatio 配置中不存在 ".concat(designWidth, " 的设置！"));
             }
             var formatSize = ~~size;
-            var rootValue = 1 / config.deviceRatio[designWidth];
+            var rootValue = 1 / deviceRatio[designWidth];
             switch (config.targetUnit) {
               case "rem":
                 rootValue *= baseFontSize * 2;
diff --git a/packages/taro-webpack-runner/src/__tests__/__snapshots__/ts.spec.ts.snap b/packages/taro-webpack-runner/src/__tests__/__snapshots__/ts.spec.ts.snap
index 8ca29e8075e0..feac76fad506 100644
--- a/packages/taro-webpack-runner/src/__tests__/__snapshots__/ts.spec.ts.snap
+++ b/packages/taro-webpack-runner/src/__tests__/__snapshots__/ts.spec.ts.snap
@@ -895,7 +895,7 @@ exports[`typescript should build project with ts 2`] = `
                 throw new Error("deviceRatio 配置中不存在 ".concat(designWidth, " 的设置！"));
             }
             var formatSize = ~~size;
-            var rootValue = 1 / config.deviceRatio[designWidth];
+            var rootValue = 1 / deviceRatio[designWidth];
             switch (config.targetUnit) {
               case "rem":
                 rootValue *= baseFontSize * 2;
diff --git a/packages/taro-webpack-runner/src/__tests__/__snapshots__/vue.spec.ts.snap b/packages/taro-webpack-runner/src/__tests__/__snapshots__/vue.spec.ts.snap
index 75ace927d986..72a78ae4916b 100644
--- a/packages/taro-webpack-runner/src/__tests__/__snapshots__/vue.spec.ts.snap
+++ b/packages/taro-webpack-runner/src/__tests__/__snapshots__/vue.spec.ts.snap
@@ -760,7 +760,7 @@ exports[`vue should build vue app 2`] = `
                 throw new Error("deviceRatio 配置中不存在 ".concat(designWidth, " 的设置！"));
             }
             var formatSize = ~~size;
-            var rootValue = 1 / config.deviceRatio[designWidth];
+            var rootValue = 1 / deviceRatio[designWidth];
             switch (config.targetUnit) {
               case "rem":
                 rootValue *= baseFontSize * 2;
diff --git a/packages/taro-webpack-runner/src/__tests__/__snapshots__/vue3.spec.ts.snap b/packages/taro-webpack-runner/src/__tests__/__snapshots__/vue3.spec.ts.snap
index b1e5955e4801..38f95d3b9ef5 100644
--- a/packages/taro-webpack-runner/src/__tests__/__snapshots__/vue3.spec.ts.snap
+++ b/packages/taro-webpack-runner/src/__tests__/__snapshots__/vue3.spec.ts.snap
@@ -709,7 +709,7 @@ exports[`vue3 should build vue3 app 2`] = `
                 throw new Error("deviceRatio 配置中不存在 ".concat(designWidth, " 的设置！"));
             }
             var formatSize = ~~size;
-            var rootValue = 1 / config.deviceRatio[designWidth];
+            var rootValue = 1 / deviceRatio[designWidth];
             switch (config.targetUnit) {
               case "rem":
                 rootValue *= baseFontSize * 2;