The utility model discloses a multi-energy combined hot dry rock energy storage heating system. The device comprises a primary filtering reservoir, the primary filtering reservoir is communicated withthe secondary filtering reservoir; the secondary filtering reservoir is communicated with the vertical well section of the recharge well through a transmission pipeline; the bottom end of the recharge well vertical well section is communicated with the water inlet end of the hot dry rock water storage system through the recharge well inclined well section, the water outlet end of the hot dry rockwater storage system is communicated with the bottom end of the geothermal water exploitation well vertical well section through the geothermal water exploitation well horizontal well section, and asubmersible pump is arranged in the geothermal water exploitation well vertical well section. The hot dry rock mining efficiency can be improved by controlling the water injection time, the water injection amount and the water injection temperature; the geothermal well temperature breakthrough time is delayed, the problems of wind curtailment and light curtailment resource waste caused by wind power and photoelectricity are comprehensively solved, wind power and photoelectricity in small areas are used for heating geothermal tail water and earth surface replenishment cold water, and then sustainable development of hot dry rock geothermal resources is guaranteed.