diff --git a/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/adapter/PolarisConfigFilePuller.java b/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/adapter/PolarisConfigFilePuller.java
index fc203029b..f9df0c063 100644
--- a/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/adapter/PolarisConfigFilePuller.java
+++ b/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/adapter/PolarisConfigFilePuller.java
@@ -43,7 +43,7 @@ import org.springframework.util.StringUtils;
 /**
  * PolarisConfigFilePuller pull configFile from Polaris.
  *
- * @author wlx
+ * @author wlx, youta
  */
 public final class PolarisConfigFilePuller {
 
@@ -197,10 +197,12 @@ public final class PolarisConfigFilePuller {
 			}
 			internalConfigFiles.add(new DefaultConfigFileMetadata(namespace, serviceName, "application-" + profile + ".properties"));
 			internalConfigFiles.add(new DefaultConfigFileMetadata(namespace, serviceName, "application-" + profile + ".yml"));
+			internalConfigFiles.add(new DefaultConfigFileMetadata(namespace, serviceName, "application-" + profile + ".yaml"));
 		}
 		// build default config properties files.
 		internalConfigFiles.add(new DefaultConfigFileMetadata(namespace, serviceName, "application.properties"));
 		internalConfigFiles.add(new DefaultConfigFileMetadata(namespace, serviceName, "application.yml"));
+		internalConfigFiles.add(new DefaultConfigFileMetadata(namespace, serviceName, "application.yaml"));
 	}
 
 	private void buildInternalBootstrapConfigFiles(
@@ -211,9 +213,11 @@ public final class PolarisConfigFilePuller {
 			}
 			internalConfigFiles.add(new DefaultConfigFileMetadata(namespace, serviceName, "bootstrap-" + profile + ".properties"));
 			internalConfigFiles.add(new DefaultConfigFileMetadata(namespace, serviceName, "bootstrap-" + profile + ".yml"));
+			internalConfigFiles.add(new DefaultConfigFileMetadata(namespace, serviceName, "bootstrap-" + profile + ".yaml"));
 		}
 		// build default config properties files.
 		internalConfigFiles.add(new DefaultConfigFileMetadata(namespace, serviceName, "bootstrap.properties"));
 		internalConfigFiles.add(new DefaultConfigFileMetadata(namespace, serviceName, "bootstrap.yml"));
+		internalConfigFiles.add(new DefaultConfigFileMetadata(namespace, serviceName, "bootstrap.yaml"));
 	}
 }
diff --git a/spring-cloud-starter-tencent-polaris-config/src/test/java/com/tencent/cloud/polaris/config/adapter/PolarisConfigFilePullerTest.java b/spring-cloud-starter-tencent-polaris-config/src/test/java/com/tencent/cloud/polaris/config/adapter/PolarisConfigFilePullerTest.java
index 0cf5e639a..6d316f33f 100644
--- a/spring-cloud-starter-tencent-polaris-config/src/test/java/com/tencent/cloud/polaris/config/adapter/PolarisConfigFilePullerTest.java
+++ b/spring-cloud-starter-tencent-polaris-config/src/test/java/com/tencent/cloud/polaris/config/adapter/PolarisConfigFilePullerTest.java
@@ -40,7 +40,7 @@ import static org.mockito.Mockito.when;
 /**
  * Test for {@link PolarisConfigFilePuller}.
  *
- * @author wlx
+ * @author wlx, youta
  */
 @ExtendWith(MockitoExtension.class)
 public class PolarisConfigFilePullerTest {
@@ -75,8 +75,10 @@ public class PolarisConfigFilePullerTest {
 		Map<String, Object> emptyMap = new HashMap<>();
 		ConfigKVFile emptyConfigFile = new MockedConfigKVFile(emptyMap);
 		when(configFileService.getConfigYamlFile(testNamespace, testServiceName, "application.yml")).thenReturn(emptyConfigFile);
+		when(configFileService.getConfigYamlFile(testNamespace, testServiceName, "application.yaml")).thenReturn(emptyConfigFile);
 		when(configFileService.getConfigPropertiesFile(testNamespace, testServiceName, "bootstrap.properties")).thenReturn(emptyConfigFile);
 		when(configFileService.getConfigYamlFile(testNamespace, testServiceName, "bootstrap.yml")).thenReturn(emptyConfigFile);
+		when(configFileService.getConfigYamlFile(testNamespace, testServiceName, "bootstrap.yaml")).thenReturn(emptyConfigFile);
 		CompositePropertySource compositePropertySource = new CompositePropertySource(polarisConfigPropertySourceName);
 
 		puller.initInternalConfigFiles(compositePropertySource, new String[] {}, new String[] {}, testServiceName);
@@ -113,11 +115,15 @@ public class PolarisConfigFilePullerTest {
 		Map<String, Object> emptyMap = new HashMap<>();
 		ConfigKVFile emptyConfigFile = new MockedConfigKVFile(emptyMap);
 		when(configFileService.getConfigYamlFile(testNamespace, testServiceName, "application.yml")).thenReturn(emptyConfigFile);
+		when(configFileService.getConfigYamlFile(testNamespace, testServiceName, "application.yaml")).thenReturn(emptyConfigFile);
 		when(configFileService.getConfigYamlFile(testNamespace, testServiceName, "application-dev.yml")).thenReturn(emptyConfigFile);
+		when(configFileService.getConfigYamlFile(testNamespace, testServiceName, "application-dev.yaml")).thenReturn(emptyConfigFile);
 		when(configFileService.getConfigPropertiesFile(testNamespace, testServiceName, "bootstrap.properties")).thenReturn(emptyConfigFile);
 		when(configFileService.getConfigPropertiesFile(testNamespace, testServiceName, "bootstrap-dev.properties")).thenReturn(emptyConfigFile);
 		when(configFileService.getConfigYamlFile(testNamespace, testServiceName, "bootstrap.yml")).thenReturn(emptyConfigFile);
+		when(configFileService.getConfigYamlFile(testNamespace, testServiceName, "bootstrap.yaml")).thenReturn(emptyConfigFile);
 		when(configFileService.getConfigYamlFile(testNamespace, testServiceName, "bootstrap-dev.yml")).thenReturn(emptyConfigFile);
+		when(configFileService.getConfigYamlFile(testNamespace, testServiceName, "bootstrap-dev.yaml")).thenReturn(emptyConfigFile);
 		List<String> active = new ArrayList<>();
 		active.add("dev");
 		String[] activeProfiles = active.toArray(new String[] {});