Resent status for dispatch automation systerns in China is introduced and the requirement for integrated EMS/DTS is discussed The advantages of the integration of EMS/DTS are analyzed. Large benefit can be obtained to develop an integrated EMS/DTS systern EMS/DTS functions for district power system application are investigated and introduced An application of the LINUX based EMS/DTS to Yolin power system is reported and is used to show the advantage of an open system Futuredevelopment of integrated EMS/DTS systerns in China isdiscussed.