diff --git a/services/sim/include/multi_sim_controller.h b/services/sim/include/multi_sim_controller.h
index 472f298bcecffb0fdcdb8e804200e43cd9f24c62..e276718cb1da4016c6bd4be1a8457d97966f4859 100755
--- a/services/sim/include/multi_sim_controller.h
+++ b/services/sim/include/multi_sim_controller.h
@@ -36,6 +36,9 @@ public:
         std::vector<std::shared_ptr<Telephony::SimFileManager>> simFileManager);
     virtual ~MultiSimController();
 
+    void AddExtraManagers(std::shared_ptr<Telephony::SimStateManager> simStateManager,
+        std::shared_ptr<Telephony::SimFileManager> simFileManager);
+
     void Init();
     bool InitData(int32_t slotId);
     int32_t GetDefaultVoiceSlotId();
diff --git a/services/sim/include/multi_sim_monitor.h b/services/sim/include/multi_sim_monitor.h
index aa2f946ccbf784ce502d3bed58b0ad4ee47eb686..f7cca503e167192a12015f65ecbac8b3923d826e 100644
--- a/services/sim/include/multi_sim_monitor.h
+++ b/services/sim/include/multi_sim_monitor.h
@@ -76,6 +76,7 @@ private:
     std::list<SimAccountCallbackRecord> listSimAccountCallbackRecord_;
     std::mutex mutexInner_;
     std::atomic<int32_t> remainCount_ = 30;
+    int32_t maxSlotCount_ = 0;
 };
 } // namespace Telephony
 } // namespace OHOS
diff --git a/services/sim/src/multi_sim_controller.cpp b/services/sim/src/multi_sim_controller.cpp
index 8cc218f0ea27c9e0c6cf76cc2331e4423c43a107..794574377d0b04b77d1241df2b9d2ea344ab8997 100644
--- a/services/sim/src/multi_sim_controller.cpp
+++ b/services/sim/src/multi_sim_controller.cpp
@@ -92,6 +92,16 @@ bool MultiSimController::ForgetAllData(int32_t slotId)
     return simDbHelper_->ForgetAllData(slotId) != INVALID_VALUE;
 }
 
+void MultiSimController::AddExtraManagers(std::shared_ptr<Telephony::SimStateManager> simStateManager,
+    std::shared_ptr<Telephony::SimFileManager> simFileManager)
+{
+    if (simStateManager_.size() == SIM_SLOT_COUNT) {
+        simStateManager_.push_back(simStateManager);
+        simFileManager_.push_back(simFileManager);
+        maxCount_ = MAX_SLOT_COUNT;
+    }
+}
+
 bool MultiSimController::InitData(int32_t slotId)
 {
     TELEPHONY_LOGI("start to initData slotId is %{public}d", slotId);
@@ -396,7 +406,7 @@ void MultiSimController::SortCache()
  */
 bool MultiSimController::IsValidData(int32_t slotId)
 {
-    if ((slotId < DEFAULT_SIM_SLOT_ID) || (slotId >= SIM_SLOT_COUNT)) {
+    if ((slotId < DEFAULT_SIM_SLOT_ID) || (static_cast<uint32_t>(slotId) >= simStateManager_.size())) {
         TELEPHONY_LOGE("can not get simStateManager");
         return false;
     }
diff --git a/services/sim/src/multi_sim_monitor.cpp b/services/sim/src/multi_sim_monitor.cpp
index 8f768b521f916f2a365283ef6445e4eff5523589..20d93a4e2df397940e70ecbd3ecf7ee21660da21 100644
--- a/services/sim/src/multi_sim_monitor.cpp
+++ b/services/sim/src/multi_sim_monitor.cpp
@@ -143,7 +143,11 @@ void MultiSimMonitor::RegisterCoreNotify(
 
 bool MultiSimMonitor::IsValidSlotId(int32_t slotId)
 {
-    return (slotId >= DEFAULT_SIM_SLOT_ID) && (slotId < SIM_SLOT_COUNT);
+    if (maxSlotCount_ == 0) {
+        maxSlotCount_ = (SIM_SLOT_COUNT == DUAL_SLOT_COUNT && VSIM_MODEM_COUNT == MAX_SLOT_COUNT) ?
+            MAX_SLOT_COUNT : SIM_SLOT_COUNT;
+    }
+    return (slotId >= DEFAULT_SIM_SLOT_ID) && (slotId < maxSlotCount_);
 }
 
 bool MultiSimMonitor::IsVSimSlotId(int32_t slotId)
diff --git a/services/sim/src/sim_manager.cpp b/services/sim/src/sim_manager.cpp
index 0ca5acefc7dd93881fd668ea3101febdd63237bc..a362f05ac981697c6ed2c10bb9255ba1b2a1f9c6 100644
--- a/services/sim/src/sim_manager.cpp
+++ b/services/sim/src/sim_manager.cpp
@@ -85,6 +85,8 @@ int32_t SimManager::InitTelExtraModule(int32_t slotId)
     simFileManager_.resize(MAX_SLOT_COUNT);
     simAccountManager_.resize(MAX_SLOT_COUNT);
     InitBaseManager(slotId);
+    multiSimController_->AddExtraManagers(simStateManager_[slotId], simFileManager_[slotId]);
+    slotCount_ = MAX_SLOT_COUNT;
     return TELEPHONY_SUCCESS;
 }
 
@@ -162,7 +164,7 @@ int32_t SimManager::GetSimState(int32_t slotId, SimState &simState)
 int32_t SimManager::GetCardType(int32_t slotId, CardType &cardType)
 {
     if (!HasSimCardInner(slotId)) {
-        TELEPHONY_LOGE("GetCardType has no sim card!");
+        TELEPHONY_LOGE("slot%{public}d GetCardType has no sim card!", slotId);
         return TELEPHONY_ERR_NO_SIM_CARD;
     }
     cardType = simStateManager_[slotId]->GetCardType();