A pressure vessel warning single chip microcomputer control system, comprising a single chip microcomputer main circuit, an analog-to-digital converter, and a PWM controller. A pressure sensor is connected to input ends of the single chip microcomputer main circuit and the analog-to-digital converter. The output end of the analog-to-digital converter is connected to the input end of the PWM controller. The output end of the PWM controller is connected in parallel to input ends of a plurality of pressure control modules. The pressure vessel warning single chip microcomputer control system performs centralized management on the plurality of pressure vessels within a region by means of a single chip microcomputer, performs real-time online detection of the pressure of each pressure vessel, and issues warning information in a timely manner, facilitating remote monitoring and management.