diff --git a/backend/competition/admin.py b/backend/competition/admin.py
index ed26af2..47d2504 100644
--- a/backend/competition/admin.py
+++ b/backend/competition/admin.py
@@ -19,6 +19,19 @@ class CompetitionAdmin(ModelAdmin):
     search_fields = ['title', 'description']
     inlines = [ScoreDimensionInline]
     
+    fieldsets = (
+        ('基本信息', {
+            'fields': ('title', 'description', 'rule_description', 'condition_description')
+        }),
+        ('封面设置', {
+            'fields': ('cover_image', 'cover_image_url'),
+            'description': '封面图可以上传本地图片，也可以填写外部链接，优先显示本地上传的图片'
+        }),
+        ('时间和状态', {
+            'fields': ('start_time', 'end_time', 'status', 'is_active')
+        }),
+    )
+    
     actions = ['make_published', 'make_ended']
 
     def make_published(self, request, queryset):
@@ -51,6 +64,19 @@ class ProjectAdmin(ModelAdmin):
     search_fields = ['title', 'contestant__user__nickname']
     inlines = [ProjectFileInline]
     readonly_fields = ['final_score']
+    
+    fieldsets = (
+        ('基本信息', {
+            'fields': ('competition', 'contestant', 'title', 'description', 'team_info')
+        }),
+        ('封面设置', {
+            'fields': ('cover_image', 'cover_image_url'),
+            'description': '封面图可以上传本地图片，也可以填写外部链接，优先显示本地上传的图片'
+        }),
+        ('状态和得分', {
+            'fields': ('status', 'final_score')
+        }),
+    )
 
 @admin.register(Score)
 class ScoreAdmin(ModelAdmin):
diff --git a/backend/competition/migrations/0002_competition_cover_image_url_project_cover_image_url.py b/backend/competition/migrations/0002_competition_cover_image_url_project_cover_image_url.py
new file mode 100644
index 0000000..ae565c5
--- /dev/null
+++ b/backend/competition/migrations/0002_competition_cover_image_url_project_cover_image_url.py
@@ -0,0 +1,23 @@
+# Generated by Django 6.0.1 on 2026-03-10 02:41
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('competition', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='competition',
+            name='cover_image_url',
+            field=models.URLField(blank=True, help_text='优先使用上传的图片', null=True, verbose_name='封面图URL'),
+        ),
+        migrations.AddField(
+            model_name='project',
+            name='cover_image_url',
+            field=models.URLField(blank=True, help_text='优先使用上传的图片', null=True, verbose_name='项目封面URL'),
+        ),
+    ]
diff --git a/backend/competition/models.py b/backend/competition/models.py
index fa62f60..53289d8 100644
--- a/backend/competition/models.py
+++ b/backend/competition/models.py
@@ -20,6 +20,7 @@ class Competition(models.Model):
     condition_description = models.TextField(verbose_name="参赛条件说明", blank=True)
     
     cover_image = models.ImageField(upload_to='competitions/covers/', verbose_name="封面图", null=True, blank=True)
+    cover_image_url = models.URLField(verbose_name="封面图URL", null=True, blank=True, help_text="优先使用上传的图片")
     
     start_time = models.DateTimeField(verbose_name="开始时间")
     end_time = models.DateTimeField(verbose_name="结束时间")
@@ -111,6 +112,7 @@ class Project(models.Model):
     team_info = models.TextField(verbose_name="团队介绍", blank=True)
     
     cover_image = models.ImageField(upload_to='competitions/projects/covers/', verbose_name="项目封面", null=True, blank=True)
+    cover_image_url = models.URLField(verbose_name="项目封面URL", null=True, blank=True, help_text="优先使用上传的图片")
     
     status = models.CharField(max_length=20, choices=STATUS_CHOICES, default='draft', verbose_name="状态")
     
diff --git a/backend/competition/serializers.py b/backend/competition/serializers.py
index 6267974..b0411ec 100644
--- a/backend/competition/serializers.py
+++ b/backend/competition/serializers.py
@@ -9,13 +9,20 @@ class ScoreDimensionSerializer(serializers.ModelSerializer):
 
 class CompetitionSerializer(serializers.ModelSerializer):
     score_dimensions = ScoreDimensionSerializer(many=True, read_only=True)
+    display_cover_image = serializers.SerializerMethodField()
     
     class Meta:
         model = Competition
         fields = ['id', 'title', 'description', 'rule_description', 'condition_description', 
-                  'cover_image', 'start_time', 'end_time', 'status', 'is_active', 
+                  'cover_image', 'cover_image_url', 'display_cover_image',
+                  'start_time', 'end_time', 'status', 'is_active', 
                   'score_dimensions', 'created_at']
 
+    def get_display_cover_image(self, obj):
+        if obj.cover_image:
+            return obj.cover_image.url
+        return obj.cover_image_url
+
 class CompetitionEnrollmentSerializer(serializers.ModelSerializer):
     user = WeChatUserSerializer(read_only=True)
     
@@ -41,11 +48,13 @@ class ProjectFileSerializer(serializers.ModelSerializer):
 class ProjectSerializer(serializers.ModelSerializer):
     files = ProjectFileSerializer(many=True, read_only=True)
     contestant_info = serializers.SerializerMethodField()
+    display_cover_image = serializers.SerializerMethodField()
     
     class Meta:
         model = Project
         fields = ['id', 'competition', 'contestant', 'title', 'description', 'team_info', 
-                  'cover_image', 'status', 'final_score', 'files', 'contestant_info', 'created_at']
+                  'cover_image', 'cover_image_url', 'display_cover_image',
+                  'status', 'final_score', 'files', 'contestant_info', 'created_at']
         read_only_fields = ['final_score', 'contestant']
 
     def get_contestant_info(self, obj):
@@ -54,6 +63,11 @@ class ProjectSerializer(serializers.ModelSerializer):
             "avatar_url": obj.contestant.user.avatar_url
         }
 
+    def get_display_cover_image(self, obj):
+        if obj.cover_image:
+            return obj.cover_image.url
+        return obj.cover_image_url
+
 class ScoreSerializer(serializers.ModelSerializer):
     judge_name = serializers.CharField(source='judge.user.nickname', read_only=True)
     dimension_name = serializers.CharField(source='dimension.name', read_only=True)
diff --git a/backend/config/settings.py b/backend/config/settings.py
index ba33455..af76f80 100644
--- a/backend/config/settings.py
+++ b/backend/config/settings.py
@@ -317,6 +317,37 @@ UNFOLD = {
                     },
                 ],
             },
+            {
+                "title": "比赛管理",
+                "separator": True,
+                "items": [
+                    {
+                        "title": "比赛列表",
+                        "icon": "emoji_events",
+                        "link": reverse_lazy("admin:competition_competition_changelist"),
+                    },
+                    {
+                        "title": "比赛人员/报名",
+                        "icon": "group_add",
+                        "link": reverse_lazy("admin:competition_competitionenrollment_changelist"),
+                    },
+                    {
+                        "title": "参赛项目",
+                        "icon": "lightbulb",
+                        "link": reverse_lazy("admin:competition_project_changelist"),
+                    },
+                    {
+                        "title": "评分记录",
+                        "icon": "score",
+                        "link": reverse_lazy("admin:competition_score_changelist"),
+                    },
+                    {
+                        "title": "评委评语",
+                        "icon": "rate_review",
+                        "link": reverse_lazy("admin:competition_comment_changelist"),
+                    },
+                ],
+            },
             {
                 "title": "系统配置",
                 "separator": True,