Anticorrosion treatment method for stiff composite pile

The invention discloses an anti-corrosion treatment method for a stiff composite pile, and relates to the field of anti-corrosion of composite piles. Comprising the following steps that a steel mold system is designed and comprises an upper half mold, a lower half mold and an edge clamping structure; the formed composite pile comprises a reinforcement cage and a pile head disc. A reinforcement cage is placed in the lower half mold, pile head discs are connected to the two ends of the reinforcement cage, and the ends of the reinforcement cage penetrate through the pile head discs and are provided with fixing pieces for fixing; anti-corrosion coatings are sprayed on the inner walls of the upper half mold and the lower half mold, and mold closing is conducted through edge clamping structures after inspection and acceptance; spherical hoop pieces are installed in center holes of the pile head discs on the two sides of the formed composite pile, and a pipe pile body is formed through pouring. The formed composite