<el-input
                  clearable
                  v-if="item.type === 'number' || item.type === 'text'"
                  :type="item.type"
                  :placeholder="item.placeholder"
                  :prefix-icon="item.icon || ''"
                  v-model.trim="searchform[item.prop]"
                ></el-input>

解决方案 添加css 即可正常

:deep(.el-input__wrapper) {
  position: relative;
  .el-input__inner {
    padding-right: 18px;
  }
  .el-input__suffix {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
  }
}