The invention relates to the technical field of bridge building construction, in particular to a temporary pier construction method. The method sequentially comprises the following steps: A: pouring a base used for supporting an assembled heavy steel pipe supporting device in a design position; B: according to a design requirement, making members of the assembled heavy steel pipe supporting device; and C: assembling the assembled heavy steel pipe supporting device on the base, wherein the height of the base ensures the assembled heavy steel pipe supporting device to have sufficient supporting strength, rigidity and stability vertically and horizontally. According to the scheme provided by the invention, the height of the base and the height of the assembled heavy steel pipe supporting device are coordinated, so that on the premise of ensuring the temporary pier to have reliable supporting strength, the construction difficulty of the temporary pier is lowered, the project time is shortened, and the construction cost and time are saved.