The　comprehensive　assessment　of　power　quality　is　essential　for　the　implementation　of　effective　power　quality　control　and　reasonable　pricing　in　the　power　market　environment.　According　to　the　characteristics　of　evaluation　index,　evaluation　weight　and　evaluation　model,　this　paper　classifies　and　summarizes　the　research　status　of　power　quality　comprehensive　evaluation.　On　this　basis,　it　summarizes　the　problems　in　existing　methods　including　it　cannot　adapt　to　different　application　requirements,　has　not　been　evaluated　long-term　scales,　has　not　considered　the　governance　costs　and　economic　benefits　of　the　evaluation　results　comprehensively,　and　has　less　consideration　of　the　integration　of　transient　steady-state　indicators.　Finally,　this　paper　points　out　that　the　evaluation　method　considering　economic　benefits,　the　comprehensive　evaluation　under　DG　grid-connected　conditions,　the　data-driven　power　quality　assessment　and　the　comprehensive　evaluation　of　energy　internet　power　quality　are　the　future　research　directions　in　this　field.　©　2020,　Power　System　Protection　and　Control　Press.　All　right　reserved.