The coal resources mining destroys the ecological environment and causes a variety of geological disasters, the location of the goaf is important. Based on this problem, the application of integrated electrical method detecting goaf was introduced, the electrical characteristic of the goaf were introduced, combined with middle gradient method, electric sounding method and high density resistivity method, the exploration areas were zoned based on curves shape by analyzing various maps and drawings, combined with geological condition, two main goaf, one minor goaf, three goaf were all inside of the protection coal column line. The practice showed that comprehensive electrical exploration exerted good effect on detection of goaf location.