Construction method of concrete pipe pile

The invention relates to the technical field of concrete pipe piles, and discloses a construction method of a concrete pipe pile. The construction method includes the steps that a hollow area is formed on the interior of the pipe pile in a surrounding mode, and a plurality of installing holes formed in the axial direction and at intervals are reserved in the side wall of the pipe pile; the inner end of a grouting floral pipe is inserted into the installing holes, and the pipe pile with the installed grouting floral pipe is arranged in a pile hole; a pushing steel pipe whose outer diameter is smaller than the inner diameter of the hollow area of the pipe pile, the pushing steel pipe is inserted into the hollow area and abuts against the outer end of the grouting floral pipe, and the inner end of the grouting floral pipe is pushed out of the installing holes and is embedded into the soil mass outside the pipe pile; when the pushing steel pipe is completely inserted into the hollow area of the pipe pile, then a