The utility model discloses an adjustable rectangle post template structure, include the template and install in the adjustable frame at the template back that adjustable frame includes: the frame body, one side and the stupefied be assembled between/be connected between of the template back of the body, the opposite side both ends are equipped with drawing the plagiocephaly, adjust the pole, the both ends of frame body are located to the both ends cunning, and both ends are equipped with the locating component who supplies with frame body location, the tip of adjusting the pole is located to the connecting rod, is equipped with the end connection's of confession and adjacent frame body locking piece on the connecting rod, that closes on each other in two adjacent frame bodies is equipped with the stay cord cable drawing to draw between the plagiocephaly. The utility model discloses a set up adjustable frame at the template back, set up in adjustable frame and can follow the frame body and remove to the template and draw close or remove the regulation pole of keeping away from, the distance of steerable regulation pole and template, adjacent adjustable frame is connected to the rethread connecting rod, and the position of the adjacent template of mobility control of pole is adjusted to the accessible, realizes adjusting template shape and size according to the dimensional requirement of rectangle post.