The utility model provides an energy -saving cooling heating integrated system, including cooling system, heating system and water charging system, the cooling system includes many refrigerators, a plurality of cooling tower, many basins, heat exchanger, water knockout drum and water collectors, and heating system includes screwed tube heat exchanger, water knockout drum and water collector, and water charging system includes soft water station and water tank, and cooling system and one set of branch water system of heating system adoption and collecting system practice thrift investment cost, manage and safeguard the convenience, can each other be reserve between a plurality of cooling towers to can give the cooling water cooling of a refrigerator simultaneously, the reinforcing cooling effect moves more reliably, at such transition season of spring or autumn, the refrigerator stop work, only by freezing tower and heat exchanger come for cooling water cooling, and heating system's the makeup water regard as to the comdenstion water that produced the heat exchanger winter, and the soft water station of unnecessary operation can reduce the energy consumption effectively.