The vehicle and engine electrical unit in former PHEV (parallel hybrid electrical vehicle) CAN network was integrated into multienergy management system (MMS), and the number of CAN nodes was changed from three to two. The MMS and ISG (integrated starter generator) controller were linked by CAN bus. PC was also linked to CAN bus by CAN interface card, which could get the real-time parameters of every controller and modify the inner data of them. The monitoring software was developed with LabVIEW 7.0. The experimental results show that the monitoring platform has the functions of realtime parameters displaying, command giving, ISG test, data saving and interactive good humancomputer interface. Every hybrid function and operating mode was successfully realized. The adjustment of control strategy, optimization of parameters, and analysis of experiment data were well done.  