Abstract: SSGF construction system inherits the advantages of assembly and traditional construction technology, and has a broad development prospect. Combined with the actual case comparative analysis of the cost difference between SSGF construction system and the traditional construction technology, it is found thatthe explicit cost of SSGF construction system increasedcompared with the traditional construction system, while the hidden cost reduced. As the technology of SSGF construction system matures, its cost will gradually reduce.