In order to respond to the road pavement damage caused by freezing disasters in Yunnan Guizhou Sichuan mountainous region and try to solve the problem of poor anti freezing property of cold patch asphalt mixture, two types of asphalt，two kinds of diluents and two kinds of additives were chosen to carry out mixture properties experiments about the anti freezing performance of cold patch asphalt mixture. Thus, the formulation of anti freezing cold patch asphalt mixture was determined. According to the climatic characteristics of Yunnan Guizhou Sichuan mountainous region, anti freezing performance of cold patch asphalt mixture were tested in condition of -5℃ to 5℃ by repeated freeze thaw cycles. The results show that, compared to base asphalt, cold patch asphalt mixture in which SBS modified asphalt is used can get higher initial Marshall stability and cohesiveness, and SBS modified asphalt is more suitable as the matrix material for cold patch asphalt. With the increase of use level（by mass） of kerosene and additive, the viscosity of cold patch asphalt declines dramatically, the initial Marshall stability and cohesiveness of cold patch asphalt mixture get worse. The recommended formulation of cold patch asphalt mixture is 70%（by mass） of SBS modified asphalt, 30% of kerosene, 2%（external addition） of additive with aggregate gradation of mean value of AC 13. The anti freezing performance of the cold patch asphalt mixture with this formulation is perfect.