To explore effective and economic scheme of heat supply with wind curtailment and deep recovery of waste energy in cooling water to achieve the most effectiveness for energy conservation and emission reduction, this paper proposes a heat supply system coupling wind curtailment with waste energy recovered from cooling water according to the principle of energy cascade utilization. This system is cored on compressing heat pump and combines the grid together with the heating network, replaces the coal-fired boiler in urban heating network as heat source with the electricity consumed and waste energy recovered by the heat pump. Meanwhile, the electricity consumed by heat pump also gives ways for equal wind curtailment connecting into the grid. The simulation results show that this heating system can recover 100 percent of the waste energy in cooling water, improves the heating ability of thermal power plant about 30 percent and realizes the long distance, large area, central heating of wind curtailment. It is estimated that 3.64 tons of water and 0.7 tons standard coal, about 4 times of that of the storage-electric boiler, can be saved if 1 MW·h wind curtailment is consumed. Also, this is an ideal scheme for wind curtailment consumption whose electricity cost is only 20～30 percent of that of conventional scheme.