Abstract: Highway management system is an integrated management platform software which is based on GSM. It can record emergency alarms of each site and be real-time to display. This system adopts STC12C5A32S2 as the core processor, and controls the GSM module to send and receive information and read the information stored by the GSM module through STC12C5A32S2, then uploads the information to the computer for processing, display and record.

Key words: single chip microcomputer, wireless transmission module, integrated management platform software