With　the　popularization　and　application　of　electric　vehicles,　charging　load　has　a　great　influence　on　the　power　system　operation.　Charging　Control　is　becoming　an　important　power　system　operation　strategy　as　well　as　generation　dispatch.　A　volume　of　research　has　been　devoted　to　charging　control　(including　vehicle-to-grid,　so-called　V2G)　which　can　not　only　alleviate　the　adverse　effects　of　charging　load　but　also　support　the　grid　operation　such　as　leveling　the　load　and　promoting　the　integration　of　renewable　generation.　We　reviewed　the　recent　investigations　on　charging　load　and　charging　control　including　the　analysis　and　simulation　models　of　charging　load,　the　revenue　of　charging　control　and　dispatch　control　strategies　in　this　paper.　In　addition,　we　pointed　out　some　open　questions　and　potential　research　directions　in　this　paper.　©　2013　Chinese　Society　for　Electrical　Engineering.