The loading test under nominal load(15~18 kW)and the short circuit test in different voltage(230,460 V) of a generator were carried out.In order to insure a singer regular resistor load and an adjustable load,different methods of connecting wire were used.The communication module and the data processing module were applied unitedly to make up a monitoring software written by LabVIEW,and the communication was realized between computer,WT230 power meter and PLC.The monitoring software can save the original data and reports,which remains the history for check and retrospect.