SOURCE

var $rows = $('#sortableHolder .bh-row');
var groups = $($rows).toArray().map(function(item, i) {
    return i + '';
});
$rows.each(function(i) {
    var sorter = Sortable.create(this, {
        group: {
            name: '' + i,
            put: groups
        },
        draggable: '.tag',
        dataIdAttr: 'data-tagid'
    });
    $(this).data('sorter', sorter);
});

$('#getSort').click(function() {
    var groups = [];
    $('#sortableHolder .bh-row').each(function() {
        groups.push({
            WID: $(this).data('groupid'),
            tags: $(this).data('sorter').toArray().map(function(id) {
                return {
                    WID: id
                };
            })
        });
    });
    $(this).next().text(JSON.stringify(groups));
    console.log(groups);

});

<div id="sortableHolder" class="bh-mh-16">
  <h3 class="sc-title-borderLeft bh-mv-16">基本信息</h3>
  <div class="bh-row" data-groupid="1">
      <div class="tag bh-mb-4 bh-col-md-2" data-tagid="11">
          <div class="bh-border-v bh-border-h bh-bColor-info-3 bh-str-cut bh-pv-2 bh-ph-4" title="来校年月1">来校年月1
          </div>
      </div>
      <div class="tag bh-mb-4 bh-col-md-2" data-tagid="11">
          <div class="bh-border-v bh-border-h bh-bColor-info-3 bh-str-cut bh-pv-2 bh-ph-4" title="来校年月2">来校年月2
          </div>
      </div>
      <div class="tag bh-mb-4 bh-col-md-2" data-tagid="11">
          <div class="bh-border-v bh-border-h bh-bColor-info-3 bh-str-cut bh-pv-2 bh-ph-4" title="来校年月3">来校年月3
          </div>
      </div>
      <div class="tag bh-mb-4 bh-col-md-2" data-tagid="11">
          <div class="bh-border-v bh-border-h bh-bColor-info-3 bh-str-cut bh-pv-2 bh-ph-4" title="来校4年月">来校4年月
          </div>
      </div>
      <div class="tag bh-mb-4 bh-col-md-2" data-tagid="11">
          <div class="bh-border-v bh-border-h bh-bColor-info-3 bh-str-cut bh-pv-2 bh-ph-4" title="来校5年月">来校5年月
          </div>
      </div>
      <div class="tag bh-mb-4 bh-col-md-2" data-tagid="11">
          <div class="bh-border-v bh-border-h bh-bColor-info-3 bh-str-cut bh-pv-2 bh-ph-4" title="6来校年月">6来校年月
          </div>
      </div>
      <div class="tag bh-mb-4 bh-col-md-2" data-tagid="11">
          <div class="bh-border-v bh-border-h bh-bColor-info-3 bh-str-cut bh-pv-2 bh-ph-4" title="qw来校年月">qw来校年月
          </div>
      </div>
      <div class="tag bh-mb-4 bh-col-md-2" data-tagid="11">
          <div class="bh-border-v bh-border-h bh-bColor-info-3 bh-str-cut bh-pv-2 bh-ph-4" title="来dd校年月">来dd校年月
          </div>
      </div>
      <div class="tag bh-mb-4 bh-col-md-2" data-tagid="11">
          <div class="bh-border-v bh-border-h bh-bColor-info-3 bh-str-cut bh-pv-2 bh-ph-4" title="来校ff年月">来校ff年月
          </div>
      </div>
  </div>
  <h3 class="sc-title-borderLeft bh-mv-16">在校信息</h3>
  <div class="bh-row" data-groupid="1">
      <div class="tag bh-mb-4 bh-col-md-2" data-tagid="11">
          <div class="bh-border-v bh-border-h bh-bColor-info-3 bh-str-cut bh-pv-2 bh-ph-4" title="在校的美好时光">在校的美好时光
          </div>
      </div>
      <div class="tag bh-mb-4 bh-col-md-2" data-tagid="11">
          <div class="bh-border-v bh-border-h bh-bColor-info-3 bh-str-cut bh-pv-2 bh-ph-4" title="在校的美好时光2">在校的美好时光2
          </div>
      </div>
      <div class="tag bh-mb-4 bh-col-md-2" data-tagid="11">
          <div class="bh-border-v bh-border-h bh-bColor-info-3 bh-str-cut bh-pv-2 bh-ph-4" title="在校的美好时光3">在校的美好时光3
          </div>
      </div>
      <div class="tag bh-mb-4 bh-col-md-2" data-tagid="11">
          <div class="bh-border-v bh-border-h bh-bColor-info-3 bh-str-cut bh-pv-2 bh-ph-4" title="来校4年月">来校4年月
          </div>
      </div>
      <div class="tag bh-mb-4 bh-col-md-2" data-tagid="11">
          <div class="bh-border-v bh-border-h bh-bColor-info-3 bh-str-cut bh-pv-2 bh-ph-4" title="来校5年月">来校5年月
          </div>
      </div>
      <div class="tag bh-mb-4 bh-col-md-2" data-tagid="11">
          <div class="bh-border-v bh-border-h bh-bColor-info-3 bh-str-cut bh-pv-2 bh-ph-4" title="6在校的美好时光">6在校的美好时光
          </div>
      </div>
      <div class="tag bh-mb-4 bh-col-md-2" data-tagid="11">
          <div class="bh-border-v bh-border-h bh-bColor-info-3 bh-str-cut bh-pv-2 bh-ph-4" title="qw在校的美好时光">qw在校的美好时光
          </div>
      </div>
      <div class="tag bh-mb-4 bh-col-md-2" data-tagid="11">
          <div class="bh-border-v bh-border-h bh-bColor-info-3 bh-str-cut bh-pv-2 bh-ph-4" title="来dd校年月">来dd校年月
          </div>
      </div>
      <div class="tag bh-mb-4 bh-col-md-2" data-tagid="11">
          <div class="bh-border-v bh-border-h bh-bColor-info-3 bh-str-cut bh-pv-2 bh-ph-4" title="来校ff年月">来校ff年月
          </div>
      </div>
  </div>
</div>
<button class="bh-btn bh-btn-primary bh-mh-16" id="getSort">获取排序数据</button>