diff --git a/app/algorithms/simulation/scenarios.py b/app/algorithms/simulation/scenarios.py
index 9890fc8..28f9954 100644
--- a/app/algorithms/simulation/scenarios.py
+++ b/app/algorithms/simulation/scenarios.py
@@ -72,6 +72,7 @@ def burst_analysis(
     modify_variable_pump_pattern: dict[str, list] = None,
     modify_valve_opening: dict[str, float] = None,
     scheme_name: str = None,
+    username: str | None = None,
 ) -> None:
     """
     爆管模拟
@@ -86,6 +87,9 @@ def burst_analysis(
     :param scheme_name: 方案名称
     :return:
     """
+    if not username:
+        raise ValueError("username is required when storing burst analysis scheme")
+
     scheme_detail: dict = {
         "burst_ID": burst_ID,
         "burst_size": burst_size,
@@ -211,7 +215,7 @@ def burst_analysis(
         name=name,
         scheme_name=scheme_name,
         scheme_type="burst_analysis",
-        username="admin",
+        username=username,
         scheme_start_time=modify_pattern_start_time,
         scheme_detail=scheme_detail,
     )
@@ -311,6 +315,7 @@ def flushing_analysis(
     drainage_node_ID: str = None,
     flushing_flow: float = 0,
     scheme_name: str = None,
+    username: str | None = None,
 ) -> None:
     """
     管道冲洗模拟
@@ -323,6 +328,9 @@ def flushing_analysis(
     :param scheme_name: 方案名称
     :return:
     """
+    if not username:
+        raise ValueError("username is required when storing flushing analysis scheme")
+
     scheme_detail: dict = {
         "duration": modify_total_duration,
         "valve_opening": modify_valve_opening,
@@ -455,7 +463,7 @@ def flushing_analysis(
         name=name,
         scheme_name=scheme_name,
         scheme_type="flushing_analysis",
-        username="admin",
+        username=username,
         scheme_start_time=modify_pattern_start_time,
         scheme_detail=scheme_detail,
     )
@@ -473,6 +481,7 @@ def contaminant_simulation(
     concentration: float,  # 污染源浓度，单位mg/L
     scheme_name: str = None,
     source_pattern: str = None,  # 污染源时间变化模式名称
+    username: str | None = None,
 ) -> None:
     """
     污染模拟
@@ -486,6 +495,9 @@ def contaminant_simulation(
     :param scheme_name: 方案名称
     :return:
     """
+    if not username:
+        raise ValueError("username is required when storing contaminant analysis scheme")
+
     scheme_detail: dict = {
         "source": source,
         "concentration": concentration,
@@ -608,7 +620,7 @@ def contaminant_simulation(
         name=name,
         scheme_name=scheme_name,
         scheme_type="contaminant_analysis",
-        username="admin",
+        username=username,
         scheme_start_time=modify_pattern_start_time,
         scheme_detail=scheme_detail,
     )
diff --git a/app/api/v1/endpoints/simulation.py b/app/api/v1/endpoints/simulation.py
index 3a758cd..2295aa8 100644
--- a/app/api/v1/endpoints/simulation.py
+++ b/app/api/v1/endpoints/simulation.py
@@ -4,8 +4,9 @@ import json
 import os
 import shutil
 import threading
-from fastapi import APIRouter, HTTPException, File, UploadFile, Query, Path, Body
+from fastapi import APIRouter, Depends, HTTPException, File, UploadFile, Query, Path, Body
 from fastapi.responses import PlainTextResponse
+from app.auth.keycloak_dependencies import get_current_keycloak_username
 import app.services.simulation as simulation
 import app.services.globals as globals
 from app.services.tjnetwork import (
@@ -209,6 +210,7 @@ async def fastapi_burst_analysis(
     burst_size: list[float] = Query(..., description="对应各爆管点的爆管流量大小列表（L/s）"),
     modify_total_duration: int = Query(..., description="模拟总时长（秒）"),
     scheme_name: str = Query(..., description="分析方案名称"),
+    username: str = Depends(get_current_keycloak_username),
 ) -> str:
     """
     爆管分析（高级版本）
@@ -229,6 +231,7 @@ async def fastapi_burst_analysis(
         burst_size=burst_size,
         modify_total_duration=modify_total_duration,
         scheme_name=scheme_name,
+        username=username,
     )
     return "success"
 
@@ -314,6 +317,7 @@ async def fastapi_flushing_analysis(
     flush_flow: float = Query(0, description="冲洗流量（L/s），0表示自动计算"),
     duration: int | None = Query(None, description="模拟持续时间（秒），默认900秒"),
     scheme_name: str = Query(..., description="冲洗方案名称"),
+    username: str = Depends(get_current_keycloak_username),
 ) -> str:
     """
     冲洗分析（高级版本）
@@ -340,6 +344,7 @@ async def fastapi_flushing_analysis(
         drainage_node_ID=drainage_node_ID,
         flushing_flow=flush_flow,
         scheme_name=scheme_name,
+        username=username,
     )
     return result or "success"
 
@@ -354,6 +359,7 @@ async def fastapi_contaminant_simulation(
     duration: int = Query(..., description="模拟持续时间（秒）"),
     scheme_name: str = Query(..., description="模拟方案名称"),
     pattern: str | None = Query(None, description="污染源模式ID（可选）"),
+    username: str = Depends(get_current_keycloak_username),
 ) -> str:
     """
     污染物模拟
@@ -376,6 +382,7 @@ async def fastapi_contaminant_simulation(
         source=source,
         concentration=concentration,
         source_pattern=pattern,
+        username=username,
     )
     return result or "success"
 
diff --git a/tests/api/test_simulation_endpoints.py b/tests/api/test_simulation_endpoints.py
index e022f92..c5c53b3 100644
--- a/tests/api/test_simulation_endpoints.py
+++ b/tests/api/test_simulation_endpoints.py
@@ -108,6 +108,12 @@ def _load_simulation_module(monkeypatch):
     )
 
 
+def _build_authenticated_client(module) -> TestClient:
+    app = build_test_app(module.router, "/api/v1")
+    app.dependency_overrides[module.get_current_keycloak_username] = lambda: "alice"
+    return TestClient(app)
+
+
 def test_run_project_endpoint_returns_plain_text(monkeypatch):
     module = _load_simulation_module(monkeypatch)
     monkeypatch.setattr(module, "run_project", lambda network: f"report::{network}")
@@ -339,6 +345,33 @@ def test_valve_close_endpoint_passes_scheme_name(monkeypatch):
     }
 
 
+def test_burst_endpoint_passes_current_username(monkeypatch):
+    module = _load_simulation_module(monkeypatch)
+    captured = {}
+
+    def fake_burst_analysis(**kwargs):
+        captured.update(kwargs)
+
+    monkeypatch.setattr(module, "burst_analysis", fake_burst_analysis)
+    client = _build_authenticated_client(module)
+
+    response = client.get(
+        "/api/v1/burst_analysis/",
+        params={
+            "network": "demo",
+            "modify_pattern_start_time": "2025-01-02T03:04:05+08:00",
+            "burst_ID": ["P1"],
+            "burst_size": [10.0],
+            "modify_total_duration": 900,
+            "scheme_name": "burst_case_01",
+        },
+    )
+
+    assert response.status_code == 200
+    assert response.text == '"success"'
+    assert captured["username"] == "alice"
+
+
 def test_flushing_endpoint_passes_required_scheme_name(monkeypatch):
     module = _load_simulation_module(monkeypatch)
     captured = {}
@@ -348,7 +381,7 @@ def test_flushing_endpoint_passes_required_scheme_name(monkeypatch):
         return "ok"
 
     monkeypatch.setattr(module, "flushing_analysis", fake_flushing_analysis)
-    client = TestClient(build_test_app(module.router, "/api/v1"))
+    client = _build_authenticated_client(module)
 
     response = client.get(
         "/api/v1/flushing_analysis/",
@@ -374,12 +407,41 @@ def test_flushing_endpoint_passes_required_scheme_name(monkeypatch):
         "drainage_node_ID": "N1",
         "flushing_flow": 100.0,
         "scheme_name": "flush_case_01",
+        "username": "alice",
     }
 
 
+def test_contaminant_endpoint_passes_current_username(monkeypatch):
+    module = _load_simulation_module(monkeypatch)
+    captured = {}
+
+    def fake_contaminant_simulation(**kwargs):
+        captured.update(kwargs)
+        return "ok"
+
+    monkeypatch.setattr(module, "contaminant_simulation", fake_contaminant_simulation)
+    client = _build_authenticated_client(module)
+
+    response = client.get(
+        "/api/v1/contaminant_simulation/",
+        params={
+            "network": "demo",
+            "start_time": "2025-01-02T03:04:05+08:00",
+            "source": "N1",
+            "concentration": 10.0,
+            "duration": 900,
+            "scheme_name": "contaminant_case_01",
+        },
+    )
+
+    assert response.status_code == 200
+    assert response.text == "ok"
+    assert captured["username"] == "alice"
+
+
 def test_contaminant_endpoint_requires_scheme_name(monkeypatch):
     module = _load_simulation_module(monkeypatch)
-    client = TestClient(build_test_app(module.router, "/api/v1"))
+    client = _build_authenticated_client(module)
 
     response = client.get(
         "/api/v1/contaminant_simulation/",