The invention discloses a non-negative-pressure pipe network pressure-superposed flow stabilization water supply facility with a compensation pump. The non-negative-pressure pipe network pressure-superposed flow stabilization water supply facility is mainly composed of a flow adjusting valve, a negative pressure eliminator, a flow stabilization compensation tank, a compensation pump, a solenoid valve, a water pump and a control cabinet; a water storage opening of a water storage cavity of the flow stabilization compensation tank is connected with a first connecting pipe, and the first connecting pipe is connected with a water inlet pipe with the solenoid valve and a water outlet pipe with a compensation pump; and the other end of the water inlet pipe and the other end of the water outlet pipe are connected with a water distribution pipe of the water pump through a second connecting pipe. The non-negative-pressure pipe network pressure-superposed flow stabilization water supply facility has the beneficial effects that a dual-cavity structure including a flow stabilization cavity and a water storage cavity is integrated to the flow stabilization compensation tank, and the adjusting amount for compensating the tap water inlet amount can be increased through the water storage cavity; in addition, pressure compensation on stored water in the water storage cavity is carried out through the compensation pump, so that pressure fluctuations of the water pump during work are better reduced; meanwhile, the flow adjusting valve is arranged so as to control tap water inlet pressure drop losing, and the pipe network pressure-superposed, non-negative-pressure, flow stabilization, water storage and water and pressure compensation adjusting secondary water supply effect is achieved; and the water supply safety is good, and the pressure is stable.