Green energy composite self-circulation power generation system characterize by integrating solar energy and water power to achieve the eco-friendly effect of green energy power generation and the effect of performing self-circulating operation to maintain power generation efficiency

A green energy composite self-circulation power generation system includes: a solar power generation equipment; a water tower; a water pool equipment having a water pool, a submersible water pump and a water hammer pump, wherein the submersible water pump is electrically connected to the solar power generation equipment to pump the water from the water pool into the water tower; a power generator set having a turbine, an over-distance gain unit and a power generator, wherein the turbine is connected to the water tower and the water hammer pump, the water in the water tower flows through the turbine to cause the turbine to generate rotational kinetic energy, the water flowing through the turbine flows to the water hammer pump and then the water hammer pumps water back to the water tower, the over-distance gain unit is connected to the turbine to receive the kinetic energy of the turbine to perform an accelerated output, the generator is connected to the over-distance gain unit to receive the kinetic energy of