Since the beginning of 2018,320 kV HV platform for multi-discipline research with highly charged ions has been operated for about 6950 h,including 4650 h for experimental target time for universities,institutes and other institutions,710 h for machine study,1410 h for experiment preparation and 190 h machine down-time.The percentages for these activities mentioned above are 67%,10%,20%and 3%,respectively.