diff --git a/apps/sam/filters.py b/apps/sam/filters.py
new file mode 100644
index 00000000..263e958d
--- /dev/null
+++ b/apps/sam/filters.py
@@ -0,0 +1,13 @@
+from django_filters import rest_framework as filters
+from apps.sam.models import OrderItem
+
+
+class OrderItemFilter(filters.FilterSet):
+
+    class Meta:
+        model = OrderItem
+        fields = {
+            "order": ["exact", "in"],
+            "order__state": ["exact", "in"],
+            "mtask": ["exact", "isnull"]
+        }
diff --git a/apps/sam/serializers.py b/apps/sam/serializers.py
index 1830ec4c..08d8143a 100644
--- a/apps/sam/serializers.py
+++ b/apps/sam/serializers.py
@@ -14,6 +14,11 @@ class CustomerSerializer(CustomModelSerializer):
 
 
 class ContractSerializer(CustomModelSerializer):
+    customer_name = serializers.CharField(
+        source='customer.name', read_only=True)
+    create_by_name = serializers.CharField(
+        source='create_by.name', read_only=True)
+
     class Meta:
         model = Contract
         fields = '__all__'
diff --git a/apps/sam/views.py b/apps/sam/views.py
index 8eff10b1..e10abdc9 100644
--- a/apps/sam/views.py
+++ b/apps/sam/views.py
@@ -11,6 +11,7 @@ from rest_framework import serializers
 from rest_framework.exceptions import PermissionDenied
 from django.utils import timezone
 from rest_framework.response import Response
+from .filters import OrderItemFilter
 
 
 # Create your views here.
@@ -38,7 +39,7 @@ class ContractViewSet(CustomModelViewSet):
     """
     queryset = Contract.objects.all()
     serializer_class = ContractSerializer
-    select_related_fields = ['customer']
+    select_related_fields = ['customer', 'create_by']
     search_fields = ['name', 'number']
     filterset_fields = ['customer']
 
@@ -88,5 +89,10 @@ class OrderItemViewSet(ListModelMixin, CreateModelMixin, DestroyModelMixin, Cust
     queryset = OrderItem.objects.all()
     serializer_class = OrderItemSerializer
     select_related_fields = ['order', 'material']
-    filterset_fields = ['order', 'material', 'mtask']
+    filterset_class = OrderItemFilter
     ordering = ['create_time']
+
+    def perform_destroy(self, instance):
+        if instance.order.state != Order.ORDER_CREATE:
+            raise ParseError('该订单状态下不可删除')
+        return super().perform_destroy(instance)