diff --git a/frontend/src/components/AeForm.vue b/frontend/src/components/AeForm.vue
new file mode 100644
index 00000000..37106730
--- /dev/null
+++ b/frontend/src/components/AeForm.vue
@@ -0,0 +1,153 @@
+<template>
+  <el-dialog :title="isEdit ? '编辑 AE' : '新增 AE'" v-model="visible" width="600px" @close="onClose">
+    <el-form ref="formRef" :model="form" :rules="rules" label-width="120px">
+      <el-form-item label="受试者" prop="subject_id">
+        <el-select v-model="form.subject_id" placeholder="可留空" clearable filterable>
+          <el-option
+            v-for="s in subjects || []"
+            :key="s.id"
+            :label="s.subject_no || s.id"
+            :value="s.id"
+          />
+        </el-select>
+      </el-form-item>
+      <el-form-item label="事件描述" prop="term">
+        <el-input v-model="form.term" />
+      </el-form-item>
+      <el-form-item label="发生日期" prop="onset_date">
+        <el-date-picker v-model="form.onset_date" type="date" value-format="YYYY-MM-DD" />
+      </el-form-item>
+      <el-form-item label="严重性" prop="seriousness">
+        <el-select v-model="form.seriousness" placeholder="请选择">
+          <el-option label="SERIOUS" value="SERIOUS" />
+          <el-option label="NON_SERIOUS" value="NON_SERIOUS" />
+        </el-select>
+      </el-form-item>
+      <el-form-item label="严重程度" prop="severity">
+        <el-select v-model="form.severity" placeholder="请选择">
+          <el-option v-for="s in severities" :key="s" :label="s" :value="s" />
+        </el-select>
+      </el-form-item>
+      <el-form-item label="描述" prop="description">
+        <el-input v-model="form.description" type="textarea" />
+      </el-form-item>
+    </el-form>
+    <template #footer>
+      <el-button @click="onClose">取消</el-button>
+      <el-button type="primary" :loading="submitting" @click="onSubmit">提交</el-button>
+    </template>
+  </el-dialog>
+</template>
+
+<script setup lang="ts">
+import { computed, reactive, ref, watch } from "vue";
+import type { FormInstance, FormRules } from "element-plus";
+import { ElMessage } from "element-plus";
+import { createAe, updateAe } from "../api/aes";
+import { useStudyStore } from "../store/study";
+
+interface Props {
+  modelValue: boolean;
+  ae?: Record<string, any>;
+  subjects?: any[];
+}
+
+const props = defineProps<Props>();
+const emit = defineEmits(["update:modelValue", "success"]);
+
+const visible = computed({
+  get: () => props.modelValue,
+  set: (v: boolean) => emit("update:modelValue", v),
+});
+
+const formRef = ref<FormInstance>();
+const submitting = ref(false);
+const study = useStudyStore();
+
+const severities = ["G1", "G2", "G3", "G4", "G5"];
+
+const form = reactive({
+  subject_id: "",
+  term: "",
+  onset_date: "",
+  seriousness: "NON_SERIOUS",
+  severity: "G1",
+  description: "",
+});
+
+const rules: FormRules = {
+  term: [{ required: true, message: "请输入事件描述", trigger: "blur" }],
+  onset_date: [{ required: true, message: "请选择发生日期", trigger: "change" }],
+  seriousness: [{ required: true, message: "请选择严重性", trigger: "change" }],
+  severity: [{ required: true, message: "请选择严重程度", trigger: "change" }],
+};
+
+const isEdit = computed(() => !!props.ae);
+
+watch(
+  () => props.ae,
+  (val) => {
+    if (val) {
+      Object.assign(form, {
+        subject_id: val.subject_id || "",
+        term: val.term || "",
+        onset_date: val.onset_date || "",
+        seriousness: val.seriousness || "NON_SERIOUS",
+        severity: val.severity || "G1",
+        description: val.description || "",
+      });
+    } else {
+      Object.assign(form, {
+        subject_id: "",
+        term: "",
+        onset_date: "",
+        seriousness: "NON_SERIOUS",
+        severity: "G1",
+        description: "",
+      });
+    }
+  },
+  { immediate: true }
+);
+
+const onClose = () => {
+  visible.value = false;
+};
+
+const onSubmit = async () => {
+  if (!formRef.value) return;
+  await formRef.value.validate(async (valid) => {
+    if (!valid) return;
+    if (!study.currentStudy) {
+      ElMessage.error("未选择项目");
+      return;
+    }
+    submitting.value = true;
+    try {
+      const payload: Record<string, any> = {};
+      const uuidLike = /^[0-9a-fA-F-]{36}$/;
+      Object.entries(form).forEach(([k, v]) => {
+        if (v !== "" && v !== null && v !== undefined) {
+          payload[k] = v;
+        }
+      });
+      if (payload.subject_id && !uuidLike.test(String(payload.subject_id))) {
+        ElMessage.warning("受试者ID格式不正确，已忽略");
+        delete payload.subject_id;
+      }
+      if (isEdit.value && props.ae) {
+        await updateAe(study.currentStudy.id, props.ae.id, payload);
+      } else {
+        await createAe(study.currentStudy.id, payload);
+      }
+      ElMessage.success("提交成功");
+      emit("success");
+      onClose();
+    } catch (e: any) {
+      ElMessage.error(e?.response?.data?.message || "提交失败");
+    } finally {
+      submitting.value = false;
+    }
+  });
+};
+</script>
diff --git a/frontend/src/views/AeDetail.vue b/frontend/src/views/AeDetail.vue
new file mode 100644
index 00000000..b3abf00a
--- /dev/null
+++ b/frontend/src/views/AeDetail.vue
@@ -0,0 +1,117 @@
+<template>
+  <div class="page" v-if="ae">
+    <el-card class="mb-12">
+      <div class="header">
+        <div>
+          <h3>AE 详情</h3>
+          <p>{{ ae.term }}</p>
+        </div>
+        <el-button v-if="canClose" :type="ae.status === 'CLOSED' ? 'primary' : 'danger'" size="small" @click="toggleClose">
+          {{ ae.status === "CLOSED" ? "重新打开" : "关闭" }}
+        </el-button>
+      </div>
+      <el-descriptions :column="2" border>
+        <el-descriptions-item label="受试者ID">{{ ae.subject_id }}</el-descriptions-item>
+        <el-descriptions-item label="严重性">{{ ae.seriousness }}</el-descriptions-item>
+        <el-descriptions-item label="严重程度">{{ ae.severity }}</el-descriptions-item>
+        <el-descriptions-item label="发生日期">{{ ae.onset_date }}</el-descriptions-item>
+        <el-descriptions-item label="状态">{{ ae.status }}</el-descriptions-item>
+        <el-descriptions-item label="描述">{{ ae.description }}</el-descriptions-item>
+      </el-descriptions>
+    </el-card>
+
+    <el-tabs>
+      <el-tab-pane label="评论">
+        <CommentList :study-id="studyId" entity-type="aes" :entity-id="ae.id" :can-comment="true" />
+      </el-tab-pane>
+      <el-tab-pane label="附件">
+        <AttachmentList :study-id="studyId" entity-type="aes" :entity-id="ae.id" :can-upload="canClose" />
+      </el-tab-pane>
+    </el-tabs>
+  </div>
+  <div v-else class="page">
+    <el-skeleton rows="4" animated />
+  </div>
+</template>
+
+<script setup lang="ts">
+import { computed, onMounted, ref } from "vue";
+import { useRoute } from "vue-router";
+import { ElMessage, ElMessageBox } from "element-plus";
+import { fetchAes, updateAe } from "../api/aes";
+import { useStudyStore } from "../store/study";
+import { useAuthStore } from "../store/auth";
+import CommentList from "../components/CommentList.vue";
+import AttachmentList from "../components/AttachmentList.vue";
+
+const route = useRoute();
+const study = useStudyStore();
+const auth = useAuthStore();
+
+const ae = ref<any | null>(null);
+const studyId = computed(() => study.currentStudy?.id || "");
+
+const canClose = computed(() => {
+  // CRA 也显示按钮，后端会校验权限
+  return true;
+});
+
+const enrichOverdue = (item: any) => {
+  if (!item) return item;
+  return {
+    ...item,
+    is_overdue:
+      item.is_overdue ??
+      (item.report_due_date && item.status !== "CLOSED" && new Date() > new Date(item.report_due_date)),
+  };
+};
+
+const load = async () => {
+  if (!study.currentStudy) return;
+  try {
+    const { data } = await fetchAes(study.currentStudy.id, { skip: 0, limit: 500 });
+    const list = data.items || data || [];
+    ae.value = enrichOverdue(list.find((item: any) => item.id === route.params.aeId));
+  } catch (e: any) {
+    ElMessage.error(e?.response?.data?.message || "AE 加载失败");
+  }
+};
+
+const toggleClose = async () => {
+  if (!study.currentStudy || !ae.value) return;
+  const targetStatus = ae.value.status === "CLOSED" ? "FOLLOW_UP" : "CLOSED";
+  await ElMessageBox.confirm(
+    `确认将该 AE 状态设置为 ${targetStatus === "CLOSED" ? "CLOSED" : "FOLLOW_UP"}？`,
+    "提示"
+  );
+  try {
+    const resp = await updateAe(study.currentStudy.id, ae.value.id, { status: targetStatus });
+    ElMessage.success("状态已更新");
+    ae.value = enrichOverdue(resp.data);
+    await load();
+  } catch (e: any) {
+    ElMessage.error(e?.response?.data?.message || "更新失败");
+  }
+};
+
+onMounted(async () => {
+  if (!auth.user && auth.token) {
+    await auth.fetchMe().catch(() => {});
+  }
+  load();
+});
+</script>
+
+<style scoped>
+.page {
+  padding: 16px;
+}
+.header {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+}
+.mb-12 {
+  margin-bottom: 12px;
+}
+</style>