el-tree默认全部禁用

<el-tree ref="treeRef" :data="menuTreeList" show-checkbox default-expand-all node-key="id" :props="defaultProps" class="disabled-tree"> </el-tree>

::v-deep .disabled-tree {
  .el-checkbox {
    pointer-events: none;
    cursor: not-allowed;
  }
  .el-checkbox__inner::after {
    border-color: #c0c4cc !important;
  }
  .el-checkbox__input {
    .el-checkbox__inner {
      // 禁用的样式
      background-color: rgb(237, 242, 252);
      border-color: rgb(217, 217, 217);
    }
    &.is-checked {
      // 勾选状态下的样式,不加的话禁用时勾选是灰色的
      .el-checkbox__inner {
        background-color: #f2f6fc;
        border-color: #dcdfe6;
      }
    }
  }
}

运行结果