diff --git a/weixin-java-miniapp/src/main/java/cn/binarywang/wx/miniapp/api/impl/BaseWxMaServiceImpl.java b/weixin-java-miniapp/src/main/java/cn/binarywang/wx/miniapp/api/impl/BaseWxMaServiceImpl.java
index 0c9aa9d62..37a25db14 100644
--- a/weixin-java-miniapp/src/main/java/cn/binarywang/wx/miniapp/api/impl/BaseWxMaServiceImpl.java
+++ b/weixin-java-miniapp/src/main/java/cn/binarywang/wx/miniapp/api/impl/BaseWxMaServiceImpl.java
@@ -377,7 +377,12 @@ public abstract class BaseWxMaServiceImpl<H, P> implements WxMaService, RequestH
   @Override
   @JsonDeserialize
   public void setMultiConfigs(Map<String, WxMaConfig> configs, String defaultMiniappId) {
-    this.configMap = Maps.newHashMap(configs);
+    // 防止覆盖配置
+    if(this.configMap != null) {
+      this.configMap.putAll(configs);
+    } else {
+      this.configMap = Maps.newHashMap(configs);
+    }
     WxMaConfigHolder.set(defaultMiniappId);
     this.initHttp();
   }
@@ -385,7 +390,11 @@ public abstract class BaseWxMaServiceImpl<H, P> implements WxMaService, RequestH
   @Override
   public void addConfig(String miniappId, WxMaConfig configStorages) {
     synchronized (this) {
-      if (this.configMap == null) {
+      /*
+       * 因为commit f74b00cf 默认初始化了configMap，导致使用此方法无法进入if从而触发initHttp()，
+       * 就会出现HttpClient报NullPointException
+       */
+      if (this.configMap == null || this.configMap.isEmpty()) {
         this.setWxMaConfig(configStorages);
       } else {
         WxMaConfigHolder.set(miniappId);
diff --git a/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/api/impl/BaseWxMpServiceImpl.java b/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/api/impl/BaseWxMpServiceImpl.java
index cb2479c57..d7c0f53ab 100644
--- a/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/api/impl/BaseWxMpServiceImpl.java
+++ b/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/api/impl/BaseWxMpServiceImpl.java
@@ -542,7 +542,12 @@ public abstract class BaseWxMpServiceImpl<H, P> implements WxMpService, RequestH
 
   @Override
   public void setMultiConfigStorages(Map<String, WxMpConfigStorage> configStorages, String defaultMpId) {
-    this.configStorageMap = Maps.newHashMap(configStorages);
+    // 防止覆盖配置
+    if(this.configStorageMap != null) {
+      this.configStorageMap.putAll(configStorages);
+    } else {
+      this.configStorageMap = Maps.newHashMap(configStorages);
+    }
     WxMpConfigStorageHolder.set(defaultMpId);
     this.initHttp();
   }
@@ -550,7 +555,11 @@ public abstract class BaseWxMpServiceImpl<H, P> implements WxMpService, RequestH
   @Override
   public void addConfigStorage(String mpId, WxMpConfigStorage configStorages) {
     synchronized (this) {
-      if (this.configStorageMap == null) {
+      /*
+       * 因为commit 2aa27cf12d 默认初始化了configStorageMap，导致使用此方法无法进入if从而触发initHttp()，
+       * 就会出现HttpClient报NullPointException
+       */
+      if (this.configStorageMap == null || this.configStorageMap.isEmpty()) {
         this.setWxMpConfigStorage(configStorages);
       } else {
         WxMpConfigStorageHolder.set(mpId);