diff --git a/deepin-system-monitor-main/model/accounts_info_model.cpp b/deepin-system-monitor-main/model/accounts_info_model.cpp
index 1cbf790b..790299fa 100644
--- a/deepin-system-monitor-main/model/accounts_info_model.cpp
+++ b/deepin-system-monitor-main/model/accounts_info_model.cpp
@@ -43,6 +43,12 @@ AccountsInfoModel::AccountsInfoModel(QObject *parent): QObject(parent)
                                          this, SLOT(onSessionNew(QString, QDBusObjectPath)));
 }
 
+AccountsInfoModel::~AccountsInfoModel()
+{
+    qDeleteAll(m_userMap.values());
+    m_userMap.clear();
+}
+
 void AccountsInfoModel::onUserListChanged(const QStringList &userPathList)
 {
     updateUserList(userPathList);
diff --git a/deepin-system-monitor-main/model/accounts_info_model.h b/deepin-system-monitor-main/model/accounts_info_model.h
index 6d9f8995..a6922f13 100644
--- a/deepin-system-monitor-main/model/accounts_info_model.h
+++ b/deepin-system-monitor-main/model/accounts_info_model.h
@@ -62,6 +62,7 @@ class AccountsInfoModel : public QObject
 
 public:
     explicit AccountsInfoModel(QObject *parent = nullptr);
+    virtual ~AccountsInfoModel();
     void updateUserList(const QStringList &userPathList);
     QList<User *> userList() const;
     User::UserType getCurrentUserType() const;
diff --git a/deepin-system-monitor-main/process/process_set.cpp b/deepin-system-monitor-main/process/process_set.cpp
index 0d1b3049..e173b237 100644
--- a/deepin-system-monitor-main/process/process_set.cpp
+++ b/deepin-system-monitor-main/process/process_set.cpp
@@ -111,13 +111,13 @@ void ProcessSet::scanProcess()
 
         for (const pid_t &pid : m_curPid) {
             if(!m_prePid.contains(pid)){ //add  new process pid
-                Process *proc = new Process(pid);
-                proc->readProcessSimpleInfo();
+                Process proc(pid);
+                proc.readProcessSimpleInfo();
                 if(!m_simpleSet.contains(pid))
-                     m_simpleSet.insert(proc->pid(), *proc);
+                     m_simpleSet.insert(proc.pid(), proc);
 
-                if (proc->appType() == kFilterApps && !wmwindowList->isTrayApp(proc->pid())) {
-                     m_pidMyApps << proc->pid();
+                if (proc.appType() == kFilterApps && !wmwindowList->isTrayApp(proc.pid())) {
+                     m_pidMyApps << proc.pid();
                 }
             }
         }