diff --git a/BUILD.gn b/BUILD.gn
index 00f7708bdef9ae2987a87f5c77317302e8125e56..add1b28c1ac1d4f035e0c5654b0903e9bfe97e76 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -55,6 +55,12 @@ ohos_source_set("lzma_source_riscv64") {
   cflags = [ "-march=rv64gc" ]
   sources = common_c_source
 }
+ohos_source_set("lzma_source_loongarch64") {
+  configs = [ ":lzma_config_common" ]
+  public_configs = [ ":lzma_config_common" ]
+  cflags = [ "-march=loongarch64" ]
+  sources = common_c_source
+}
 
 # on device
 ohos_source_set("lzma_source_arm64") {
@@ -116,6 +122,20 @@ ohos_source_set("lzma_source_riscv64_host") {
   sources = common_c_source
 }
 
+#on host
+ohos_source_set("lzma_source_loongarch64_host") {
+  configs = [
+    ":lzma_config_common",
+    ":lzma_config_host",
+  ]
+  public_configs = [
+    ":lzma_config_common",
+    ":lzma_config_host",
+  ]
+
+  sources = common_c_source
+}
+
 # on device
 ohos_shared_library("lzma_shared") {
   branch_protector_ret = "pac_ret"
@@ -127,6 +147,8 @@ ohos_shared_library("lzma_shared") {
     deps = [ ":lzma_source_arm64" ]
   } else if (target_cpu == "riscv64") {
     deps = [ ":lzma_source_riscv64" ]
+  } else if (target_cpu == "loongarch64") {
+    deps = [ ":lzma_source_loongarch64" ]
   }
   innerapi_tags = [
     "chipsetsdk_indirect",
@@ -154,6 +176,8 @@ ohos_static_library("lzma_static") {
     deps = [ ":lzma_source_x86_host" ]
   } else if (current_cpu == "riscv64") {
     deps = [ ":lzma_source_riscv64_host" ]
+  } else if (current_cpu == "loongarch64") {
+    deps = [ ":lzma_source_loongarch64_host" ]
   }
 
   part_name = "lzma"