The invention discloses an adjustable profile steel fixing system comprising multiple layers of profile steel column hoops arranged around the outer side of a column wood plywood formwork. Each layer of profile steel column hoop comprises first groove steel combination bodies located on the front and rear sides of the column wood plywood formwork; the left and right ends of the first groove steel combination bodies are connected through first opposite-pulling screw rods; first nuts are connected at the two ends of the first opposite-pulling screw rods; second groove steel combination bodies located on the left and right sides of the column wood plywood formwork are arranged on the first groove steel combination bodies; the front and rear ends of the second groove steel combination bodies are connected through second opposite-pulling screw rods; second nuts are connected at the two ends of the second opposite-pulling screw rods; and a quantity of vertical square steel closely attached to the column wood plywood formwork is arranged between the column wood plywood formwork and the multiple layers of profile steel column hoops. According to the adjustable profile steel fixing system, the strength and rigidity of the reinforcement system are high, deflection deformation of the column cross-sections can be effectively controlled, column surface slurry leakage, staggered platforms and the like due to the fact that the opposite-pulling screw rods penetrate through concrete are avoided, the fixing system is easy to mount and dismantle, the construction time is shortened, and the construction efficiency and economic benefits are improved.