OBD (on-board diagnostics) system based cloud service system

The invention relates to an OBD (on-board diagnostics) system based cloud service system and an OBD system. The cloud service system comprises the OBD system, an on-board communication terminal and a cloud platform communication server. The OBD system is used for acquiring status data of cars and driving behavior data of drivers; the on-board communication terminal is used for sending the status data of the cars and the driving behavior data of the drivers through a wireless communication network; the cloud platform communication server is used for realizing communication with the on-board communication terminal, receiving the status data of the cars and the driving behavior data of the drivers and analyzing to generate drive prompt messages to the on-board communication terminal to be displayed. Since the status data of the cars and the driving behavior data of the drivers are acquired through the OBD system and are uploaded to the cloud platform communication server, behavior habits of the drivers are analyzed by the cloud technology, the drive prompt messages are pushed to the drivers of the cars to prompt the drivers to notice the car status and to regulate driving habits, and thus, the drivers can get complete help.