diff --git a/registry/registry-nacos/src/main/java/com/alipay/sofa/rpc/registry/nacos/NacosRegistryHelper.java b/registry/registry-nacos/src/main/java/com/alipay/sofa/rpc/registry/nacos/NacosRegistryHelper.java
index bd627c5c0..2629b2a8e 100644
--- a/registry/registry-nacos/src/main/java/com/alipay/sofa/rpc/registry/nacos/NacosRegistryHelper.java
+++ b/registry/registry-nacos/src/main/java/com/alipay/sofa/rpc/registry/nacos/NacosRegistryHelper.java
@@ -128,7 +128,7 @@ static List<ProviderInfo> convertInstancesToProviders(List<Instance> allInstance
             // Nacos的默认权重为1.0
             // 当Nacos默认权重传入1.0，根据代码逻辑计算结果为100，与sofa-rpc默认权重一致
             // 因为是接口级别，如果不同的服务具有不同的权重也不会出现被覆盖或者冲突的情况
-            if (nacosWeight > 0.0) {
+            if (nacosWeight >= 0.0) {
                 long weight = Math.round(providerInfo.getWeight() * nacosWeight);
                 providerInfo.setWeight((int) weight);
             }