Analysis and compare with the controlling methods of the circulating pump of the traditional heating boiler by measuring to the existing heating boiler systems. At the same time, on the basis of summarizing manual, offer Quasi-equilibrium Temperature Difference Fuzzy Control Method of the temperature of supply and return water, and directly, find out the relationship between the supplying and returning water temperature of circulating pump and the outdoor temperature. So that it will get rid of the dependence to complex multi-parameter mathematical model of nonlinear large time delay, improving the timeliness, reducing power consumption and avoiding the energy waste.