The invention discloses a hybrid energy supply system coupling a natural gas based distributed energy source system with a ground source heat pump. The hybrid type energy supply system comprises a gas turbine, a lithium bromide absorption unit, an exhaust heat boiler, a first water source heat pump unit, a second water source heat pump unit, a first heat exchanger, a second heat exchanger, a third heat exchanger, an absorption dehydrating device, an underground heat exchanger, a paralleling set, an ice storage device, a first heat storage water tank, a second heat storage water tank, a construction energy consumption monitoring and controlling device and a signal feedback control network. Exhaust heat of the distributed energy source system is utilized sufficiently, and efficiency of a total energy system is further improved. Two energy source technologies of fossil clean energy and renewable energy are comprehensively utilized to couple and integrate, and advantageous complementation of the two energy sources is realized. Compared with an existing hybrid energy supply system, the hybrid energy supply system has the advantages that energy utilization efficiency is greatly improved, huge environmental protection benefit can be created, and practical significance is great.