The invention belongs to the field of communication, and provides a high-reliability system for automatically monitoring the water temperature and the water level through multiple channels. The system comprises a first CPU, a second CPU, a first set of temperature sensors, a second set of temperature sensors, a first set of water pressure sensors, a second set of water pressure sensors, a memorizer, a first signal channel control detector, a second signal channel control detector, a third signal channel control detector and a fourth signal channel control detector. According to the technical scheme, the system has the advantages of being high in reliability and stability.