Foam concrete is widely used in many countries for panels, walls, road fillers, insulated wall panels, etc., due to its excellent properties such as light weight, thermal insulation, and fire resistance. With the diversification of its application scenarios, the frost resistance of foam concrete in complex environments has attracted much attention. In this paper, the effects of single freeze-thaw cycle time, freeze-thaw temperature, freeze-thaw mode and specimen size of foam concrete on its frost-thaw resistance during freeze-thaw test are summarized, and the shortcomings of current research are pointed out. The results show that the length of freezing time is inversely proportional to mass loss. With the decrease of freezing temperature, the frost resistance of foamed concrete showed a decreasing trend and stabilized. Improper selection of melting temperature will lead to cracking and incomplete melting of foam concrete; The air-frozen water-thaw method and slow-freezing method are more conducive to maintaining the structural integrity of foam concrete, but it is necessary to pay attention to the complex operation and long test period. With the increase of the size of the specimen, the degree of freeze-thaw damage of the specimen increases, and the frost resistance of the 100mm cube specimen is the best.