diff --git a/eng/common/dotnet-install.sh b/eng/common/dotnet-install.sh
index fdfeea66e7d..5c94e98632a 100755
--- a/eng/common/dotnet-install.sh
+++ b/eng/common/dotnet-install.sh
@@ -55,6 +55,9 @@ case $cpuname in
   aarch64)
     buildarch=arm64
     ;;
+  loongarch64)
+    buildarch=loongarch64
+    ;;
   amd64|x86_64)
     buildarch=x64
     ;;
diff --git a/eng/common/native/CommonLibrary.psm1 b/eng/common/native/CommonLibrary.psm1
index adf707c8fe7..ca38268c44d 100644
--- a/eng/common/native/CommonLibrary.psm1
+++ b/eng/common/native/CommonLibrary.psm1
@@ -276,7 +276,8 @@ function Get-MachineArchitecture {
   }
   if (($ProcessorArchitecture -Eq "AMD64") -Or
       ($ProcessorArchitecture -Eq "IA64") -Or
-      ($ProcessorArchitecture -Eq "ARM64")) {
+      ($ProcessorArchitecture -Eq "ARM64") -Or
+      ($ProcessorArchitecture -Eq "LOONGARCH64")) {
     return "x64"
   }
   return "x86"