Pile foundation reinforcement cage variable supporting device

The utility model relates to a pile foundation reinforcement cage variable supporting device, and belongs to the technical field of pile foundation engineering, the pile foundation reinforcement cage variable supporting device comprises a base and at least two sets of supporting assemblies; a clamping assembly is arranged on the supporting assembly and comprises a first clamping plate and a second clamping plate, the first clamping plate is detachably connected with the second clamping plate, and a stiffening stirrup of a reinforcement cage can be arranged in the first clamping plate and the second clamping plate. By arranging the supporting assembly and the clamping assembly, in the using process, the clamping assembly is used for clamping a stiffening stirrup of a reinforcement cage, and the supporting assembly is used for supporting a reinforcement cage framework; during disassembly, an operator does not need to cut off the supporting assembly by using oxygen acetylene in a traditional method, so that the