Purpose: Compare of the efficiency of 1470nm laser and 1470nm laser heat head for tissue cutting in vitro porcine kidney tissue. Method: We designed a laser heat head that convert laser energy into thermal energy by the absorbing materials. Fresh kidney tissue was harvested from a porcine and then placed on a turntable with constant speed. The same power of 1470nm laser and 1470nm laser heat head was used to cutting tissue, respectively. The cutting results and the range of thermal damage was compared after cutting. Result: Compared with 1470nm laser, 1470nm laser heat head's cutting traces is more smooth and the thermal damage area is very regular, so it has smaller damage to deep tissue. Conclusion: The efficiency of laser heat head for tissue cutting was better. This study indicate that we might be able to make laser which the tissue have a low absorption coefficient about it to obtain good results for tissue cutting through the laser point heat source.