The invention relates to the technical field of buildings, in particular to a calculation method for pipe pile any section inclination based on horizontal inclinometry. The calculation method includesthe following steps that firstly, corresponding inclinometer casings are spliced according to the length of a pipe pile; secondly, the pipe pile is horizontally arranged, pile holes in the two sidesare sealed by a half, and a cement self-leveling layer with the thickness being 15 mm to 25 mm is poured into the inner holes; thirdly, a bonding agent is used for bonding the inclinometer casings onto the cement self-leveling layer; fourthly, the pile is driven into a test field, and detection is conducted after a resting period; and fifthly, an inclinometer is used for measuring the horizontal displacement of the pile under a certain stage of loads, related data are derived, and an octagonal polynomial is used for conducting fitting on a horizontal displacement curve of a pile body. By meansof the method, the pipe pile any section inclination can be obtained through fitting on horizontal inclinometry of the pile body, the precision meets an engineering requirement, a scientific basis can be provided for power analysis of the pipe pile under the horizontal load or even the earthquake action, and the technical support is laid for the next step of basic earthquake resistance design ofthe pipe pile.