This paper introduced a method which one kind of use nRF24L01 wireless RF transceiver chip sent the battery voltage, temperature, current, ID number, environmental temperature and other information to the collection host, collection host received data can be in the local LCD display and also be passed to DM9000A Ethernet control chip sends the data to the remote terminal monitoring. The monitoring system can not only reduce the construction quantity, but also the battery performance in real-time on-line monitoring. Meanwhile, Alarm information can be timely sent when the battery abnormality .According to the collected line current and the battery temperature and other parameters, collection host can estimate cell SOC value, thus more accurate description trend of battery performance.