diff --git a/apps/pm/migrations/0020_mtaskb.py b/apps/pm/migrations/0020_mtaskb.py
new file mode 100644
index 00000000..bd319ecb
--- /dev/null
+++ b/apps/pm/migrations/0020_mtaskb.py
@@ -0,0 +1,32 @@
+# Generated by Django 3.2.12 on 2024-09-03 08:38
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+import django.utils.timezone
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+        ('pm', '0019_auto_20240703_1618'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Mtaskb',
+            fields=[
+                ('id', models.CharField(editable=False, help_text='主键ID', max_length=20, primary_key=True, serialize=False, verbose_name='主键ID')),
+                ('create_time', models.DateTimeField(default=django.utils.timezone.now, help_text='创建时间', verbose_name='创建时间')),
+                ('update_time', models.DateTimeField(auto_now=True, help_text='修改时间', verbose_name='修改时间')),
+                ('is_deleted', models.BooleanField(default=False, help_text='删除标记', verbose_name='删除标记')),
+                ('count', models.PositiveIntegerField(default=0, verbose_name='任务数')),
+                ('handle_user', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='mtaskb_handle_user', to=settings.AUTH_USER_MODEL, verbose_name='操作人')),
+                ('mtask', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='b_mtask', to='pm.mtask', verbose_name='关联任务')),
+            ],
+            options={
+                'abstract': False,
+            },
+        ),
+    ]
diff --git a/apps/pm/models.py b/apps/pm/models.py
index 391191e2..02e6c934 100644
--- a/apps/pm/models.py
+++ b/apps/pm/models.py
@@ -1,5 +1,5 @@
 from django.db import models
-from apps.utils.models import CommonADModel, CommonBDModel
+from apps.utils.models import CommonADModel, CommonBDModel, BaseModel
 from apps.mtm.models import Material, Mgroup, RoutePack, Route
 
 # Create your models here.
@@ -111,3 +111,10 @@ class Mtask(CommonADModel):
     def mlogs(self):
         from apps.wpm.models import Mlog
         return Mlog.objects.filter(mtask=self)
+
+
+class Mtaskb(BaseModel):
+    mtask = models.ForeignKey(Mtask, verbose_name='关联任务', on_delete=models.CASCADE, related_name='b_mtask')
+    handle_user = models.ForeignKey(
+        'system.user', verbose_name='操作人', on_delete=models.CASCADE, related_name='mtaskb_handle_user')
+    count = models.PositiveIntegerField('任务数', default=0)
\ No newline at end of file
diff --git a/apps/pm/serializers.py b/apps/pm/serializers.py
index c0245fe7..8a6a5d8d 100644
--- a/apps/pm/serializers.py
+++ b/apps/pm/serializers.py
@@ -3,11 +3,12 @@ from rest_framework.exceptions import ValidationError, ParseError
 import math
 
 from apps.mtm.serializers import MaterialSimpleSerializer
-from apps.pm.models import Mtask, Utask, SCHEDULE_TYPE
+from apps.pm.models import Mtask, Utask, SCHEDULE_TYPE, Mtaskb
 from apps.sam.models import OrderItem
 from apps.utils.serializers import CustomModelSerializer
 from apps.system.models import Dept
 from apps.wpm.models import Mlog
+from apps.utils.constants import EXCLUDE_FIELDS_BASE
 
 
 class UtaskSerializer(CustomModelSerializer):
@@ -110,3 +111,16 @@ class MtaskAddInfoSerializer(CustomModelSerializer):
     class Meta:
         model = Mtask
         fields = ['peifen_kg']
+
+class MtaskbSerializer(CustomModelSerializer):
+    handle_user_name = serializers.StringRelatedField(
+        source='handle_user.name', read_only=True)
+    class Meta:
+        model = Mtaskb
+        fields = '__all__'
+        read_only_fields = EXCLUDE_FIELDS_BASE
+
+class MtaskbUpdateSerializer(CustomModelSerializer):
+    class Meta:
+        model = Mtaskb
+        fields = ['id', 'count']
\ No newline at end of file
diff --git a/apps/pm/urls.py b/apps/pm/urls.py
index b75e9f9e..082f7d3d 100644
--- a/apps/pm/urls.py
+++ b/apps/pm/urls.py
@@ -1,12 +1,13 @@
 from django.urls import path, include
 from rest_framework.routers import DefaultRouter
-from apps.pm.views import (MtaskViewSet, UtaskViewSet)
+from apps.pm.views import (MtaskViewSet, UtaskViewSet, MtaskbViewSet)
 
 API_BASE_URL = 'api/pm/'
 HTML_BASE_URL = 'pm/'
 
 router = DefaultRouter()
 router.register('mtask', MtaskViewSet, basename='mtask')
+router.register('mtaskb', MtaskbViewSet, basename='mtaskb')
 router.register('utask', UtaskViewSet, basename='utask')
 urlpatterns = [
     path(API_BASE_URL, include(router.urls)),
diff --git a/apps/pm/views.py b/apps/pm/views.py
index eadc1cc8..4b06348a 100644
--- a/apps/pm/views.py
+++ b/apps/pm/views.py
@@ -8,9 +8,10 @@ from apps.utils.serializers import PkSerializer
 from apps.utils.viewsets import CustomModelViewSet
 
 from .filters import MtaskFilter, UtaskFilter
-from .models import Mtask, Utask
+from .models import Mtask, Utask, Mtaskb
 from .serializers import (MtaskSerializer, SchedueSerializer, UtaskSerializer, 
-                            MtaskDaySerializer, MtaskAddInfoSerializer, SchedueMtasksSerializer)
+                            MtaskDaySerializer, MtaskAddInfoSerializer, 
+                            SchedueMtasksSerializer, MtaskbSerializer, MtaskbUpdateSerializer)
 from .services import PmService
 from django.utils import timezone
 
@@ -204,3 +205,11 @@ class MtaskViewSet(CustomModelViewSet):
         sr.is_valid(raise_exception=True)
         sr.save()
         return Response()
+
+
+class MtaskbViewSet(CustomModelViewSet):
+    queryset = Mtaskb.objects.all()
+    serializer_class = MtaskbSerializer
+    update_serializer_class = MtaskbUpdateSerializer
+    filterset_fields = {"mtask": ["exact"], "handle_user": ["exact"]}
+    ordering = ['id']
\ No newline at end of file