Satellite attitude adjusting device

The invention provides a satellite attitude adjusting device which comprises a base, a supporting assembly, an angle adjusting assembly and a satellite fixing assembly, the supporting assembly is rotatably fixed to the base, and the satellite fixing assembly is rotatably fixed to the end, opposite to one side of the base, of the supporting assembly; the supporting assembly comprises at least two supporting columns connected in sequence, an included angle is formed between the supporting columns, and the supporting columns are provided with containing cavities communicating with each other. The angle adjusting assembly comprises a first driving mechanism and a second driving mechanism which are arranged in the containing cavity. The first driving mechanisms are in one-to-one correspondence with the supporting columns, and the first driving mechanisms are configured to drive the corresponding supporting columns to rotate along the center axes of the supporting columns so as to drive the supporting assemblies to