el-date-picker组件添加属性value-format="yyyy-MM-dd hh:mm:ss" 即可，看代码：
<el-form ref="form" :model="form">
<el-form-item>
<el-col>
<el-date-picker value-format="yyyy-MM-dd" type="date" placeholder="选择日期" v-model="form.baoxiu_time_1" style="width: 100%;"></el-date-picker>
</el-col>
<el-col>
<el-time-picker value-format="hh:mm:ss" type="fixed-time" placeholder="选择时间" v-model="form.baoxiu_time_2" style="width: 100%;"></el-time-picker>
</el-col>
</el-form-item>
</el-form>
