Twelve cruises underway data of Acoustic Doppler Current Profiler (ADCP) installed on board Xuelong Vessel between China and the Antarctic have been obtained by the Chinese National Antarctic Research Expeditions (the CHINAREs) since 1995. However, most of them is still stored in the database as original. This paper presents a basic flow chart of the ADCP data processing based on analysis of relative records by navigation and positioning equipments on board, and our knowledge on the oceanographic status along the transects of the ship. The flow chart includes data scanning, time correction, loading data into databases, editing, calibration and rotation, navigation calculation, and lastly computing absolute current velocities and making vector plots at different layer along parts of the ship tracks for the CHINARE-12^th (1995/1996), -13^th (1996/1997), -14^th (1997/1998), and -15^th (1998/1999) (in austral summers). Absolute current vector plots were obtained for this processed data set. Such technical processing flow chart may facilitate for ADCP data processing, analysis of the other cruises in the future. We made technical advice on how more accurate ADCP data would be obtained according to our processing experience. We also described farther ADCP data analysis and multidisciplinary applications.