The invention relates to pile foundation construction, in particular to a construction method for a cement-soil mixed pile. The sand pile mixing construction method for the cement-soil mixed pile includes the steps that a hole is formed in the mixing position of the mixed pile, the center of the formed hole is located on the rotating outer edge of a lower mixing head, it is ensured that amounts of yellow sand stirred by two adjacent mixing heads in the middle of the mixed pile are uniform, and then yellow sand is filled after the hole is formed; mixed pile forming construction is carried out after sand filling, cement paste is sprayed into the pile in construction, spraying and mixing operation is carried out according to the design requirement, as the cement paste is sprayed in and stirred, the yellow sand in a sand pile will be evenly mixed into the mixed pile, and the strength and quality of the mixed pile are ensured and improved. The yellow sand can be evenly mixed into the mixed pile, and the strength and quality of the mixed pile are ensured and improved.