diff --git a/apps/assets/migrations/0059_auto_20201027_1905.py b/apps/assets/migrations/0059_auto_20201027_1905.py
new file mode 100644
index 000000000..643acd356
--- /dev/null
+++ b/apps/assets/migrations/0059_auto_20201027_1905.py
@@ -0,0 +1,18 @@
+# Generated by Django 2.2.13 on 2020-10-27 11:05
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('assets', '0058_auto_20201023_1115'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='systemuser',
+            name='protocol',
+            field=models.CharField(choices=[('ssh', 'ssh'), ('rdp', 'rdp'), ('telnet', 'telnet'), ('vnc', 'vnc'), ('mysql', 'mysql'), ('oracle', 'oracle'), ('mariadb', 'mariadb'), ('postgresql', 'postgresql'), ('k8s', 'k8s')], default='ssh', max_length=16, verbose_name='Protocol'),
+        ),
+    ]
diff --git a/apps/assets/models/user.py b/apps/assets/models/user.py
index 8b878ecde..add83e2ad 100644
--- a/apps/assets/models/user.py
+++ b/apps/assets/models/user.py
@@ -72,6 +72,9 @@ class SystemUser(BaseUser):
     PROTOCOL_TELNET = 'telnet'
     PROTOCOL_VNC = 'vnc'
     PROTOCOL_MYSQL = 'mysql'
+    PROTOCOL_ORACLE = 'oracle'
+    PROTOCOL_MARIADB = 'mariadb'
+    PROTOCOL_POSTGRESQL = 'postgresql'
     PROTOCOL_K8S = 'k8s'
     PROTOCOL_CHOICES = (
         (PROTOCOL_SSH, 'ssh'),
@@ -79,6 +82,9 @@ class SystemUser(BaseUser):
         (PROTOCOL_TELNET, 'telnet'),
         (PROTOCOL_VNC, 'vnc'),
         (PROTOCOL_MYSQL, 'mysql'),
+        (PROTOCOL_ORACLE, 'oracle'),
+        (PROTOCOL_MARIADB, 'mariadb'),
+        (PROTOCOL_POSTGRESQL, 'postgresql'),
         (PROTOCOL_K8S, 'k8s'),
     )
 
@@ -127,6 +133,24 @@ class SystemUser(BaseUser):
     def login_mode_display(self):
         return self.get_login_mode_display()
 
+    @property
+    def db_application_protocols(self):
+        return [
+            self.PROTOCOL_MYSQL, self.PROTOCOL_ORACLE, self.PROTOCOL_MARIADB,
+            self.PROTOCOL_POSTGRESQL
+        ]
+
+    @property
+    def k8s_application_protocols(self):
+        return [self.PROTOCOL_K8S]
+
+    @property
+    def application_category_protocols(self):
+        protocols = []
+        protocols.extend(self.db_application_protocols)
+        protocols.extend(self.k8s_application_protocols)
+        return protocols
+
     def is_need_push(self):
         if self.auto_push and self.protocol in [self.PROTOCOL_SSH, self.PROTOCOL_RDP]:
             return True
@@ -139,11 +163,11 @@ class SystemUser(BaseUser):
 
     @property
     def is_need_test_asset_connective(self):
-        return self.protocol not in [self.PROTOCOL_MYSQL]
+        return self.protocol not in self.application_category_protocols
 
     @property
     def can_perm_to_asset(self):
-        return self.protocol not in [self.PROTOCOL_MYSQL]
+        return self.protocol not in self.application_category_protocols
 
     def _merge_auth(self, other):
         super()._merge_auth(other)
diff --git a/apps/perms/forms/asset_permission.py b/apps/perms/forms/asset_permission.py
index 92ca8030f..aa75b8be5 100644
--- a/apps/perms/forms/asset_permission.py
+++ b/apps/perms/forms/asset_permission.py
@@ -60,7 +60,7 @@ class AssetPermissionForm(OrgModelForm):
         # 过滤系统用户
         system_users_field = self.fields.get('system_users')
         system_users_field.queryset = SystemUser.objects.exclude(
-            protocol=SystemUser.PROTOCOL_MYSQL
+            protocol__in=SystemUser.application_category_protocols
         )
 
     def set_nodes_initial(self, nodes):
diff --git a/apps/perms/forms/database_app_permission.py b/apps/perms/forms/database_app_permission.py
index 57ce4d0e3..9074491c9 100644
--- a/apps/perms/forms/database_app_permission.py
+++ b/apps/perms/forms/database_app_permission.py
@@ -25,7 +25,7 @@ class DatabaseAppPermissionCreateUpdateForm(OrgModelForm):
         # 过滤系统用户
         system_users_field = self.fields.get('system_users')
         system_users_field.queryset = SystemUser.objects.filter(
-            protocol=SystemUser.PROTOCOL_MYSQL
+            protocol__in=SystemUser.application_category_protocols
         )
 
     class Meta:
diff --git a/apps/terminal/migrations/0026_auto_20201027_1905.py b/apps/terminal/migrations/0026_auto_20201027_1905.py
new file mode 100644
index 000000000..d820166d6
--- /dev/null
+++ b/apps/terminal/migrations/0026_auto_20201027_1905.py
@@ -0,0 +1,18 @@
+# Generated by Django 2.2.13 on 2020-10-27 11:05
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('terminal', '0025_auto_20200810_1735'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='session',
+            name='protocol',
+            field=models.CharField(choices=[('ssh', 'ssh'), ('rdp', 'rdp'), ('vnc', 'vnc'), ('telnet', 'telnet'), ('mysql', 'mysql'), ('oracle', 'oracle'), ('mariadb', 'mariadb'), ('postgresql', 'postgresql'), ('k8s', 'kubernetes')], db_index=True, default='ssh', max_length=16),
+        ),
+    ]
diff --git a/apps/terminal/models.py b/apps/terminal/models.py
index dc747c370..a0f074b48 100644
--- a/apps/terminal/models.py
+++ b/apps/terminal/models.py
@@ -180,6 +180,9 @@ class Session(OrgModelMixin):
         VNC = 'vnc', 'vnc'
         TELNET = 'telnet', 'telnet'
         MYSQL = 'mysql', 'mysql'
+        ORACLE = 'oracle', 'oracle'
+        MARIADB = 'mariadb', 'mariadb'
+        POSTGRESQL = 'postgresql', 'postgresql'
         K8S = 'k8s', 'kubernetes'
 
     id = models.UUIDField(default=uuid.uuid4, primary_key=True)
@@ -196,7 +199,7 @@ class Session(OrgModelMixin):
     has_replay = models.BooleanField(default=False, verbose_name=_("Replay"))
     has_command = models.BooleanField(default=False, verbose_name=_("Command"))
     terminal = models.ForeignKey(Terminal, null=True, on_delete=models.SET_NULL)
-    protocol = models.CharField(choices=PROTOCOL.choices, default='ssh', max_length=8, db_index=True)
+    protocol = models.CharField(choices=PROTOCOL.choices, default='ssh', max_length=16, db_index=True)
     date_start = models.DateTimeField(verbose_name=_("Date start"), db_index=True, default=timezone.now)
     date_end = models.DateTimeField(verbose_name=_("Date end"), null=True)