第一种：

<el-table-column  label="精品图片">
        <template slot-scope="scope">
            <el-popover placement="top-start" title="" trigger="hover">
              <img :src="scope.row.product.cover" alt="" style="width: 150px;height: 150px">
              <img slot="reference" :src="scope.row.product.cover" style="width: 30px;height: 30px">
            </el-popover>
        </template>
      </el-table-column>

效果图：

第二种：

<el-table-column  label="精品图片">
        <template slot-scope="scope">
          <el-image style="width: 30px; height: 30px" :src="scope.row.product.cover" :preview-src-list="[scope.row.product.cover]">
            <div slot="error" class="image-slot">
              <i class="el-icon-picture-outline"></i>
            </div>
          </el-image>
        </template>
      </el-table-column>

效果：

如何插入多张：

<el-table-column  label="面料图片">
        <template slot-scope="scope">
          <el-image v-for="(item, index) in scope.row.image_info" :key='index' style="width: 30px; height: 30px" :src="item.image" :preview-src-list="[item.image]"></el-image>
        </template>
      </el-table-column>

效果：