Silent pressure pump with sensor that can achieve water supply at steady pressure. A thermal protector is installed on the pump body to detect the temperature of the pump body; when the water pump runs without water or the temperature of the medium is too high, the water pump will stop running. The water pump is protected by its base and enclosure, featured by weather-proofing, damp-proofing, and low noise. With features like high lift, quiet operation, small footprint, light weight, compact structure, and easy installation, is an energy-efficient, hygienic, and safe electric pump ideal for house hold application.