Abstract: The heat exchanger tube and gas collector can bring about unsafe factors to the heating device.To overcome them,a creative design methodology called TRIZ(Theory of Inventive Problem Solving)was introduced and applied to the safety design of heating device.According to TRIZ,the technical conflict in the device can be solved through the analysis of technical contradiction and the application of creative principles,and thus the unsafe factors can be avoided.Compared with traditional methods,the application of TRIZ theory to the safety design of equipment can lower the difficulty of the problem,increase the efficiency ofsolving the problem,and enhance the safety of the device.The theory is worth applying to practice.