A stripping-solution machine and working method thereof are provided. The stripping-solution machine includes: a plurality stages of chambers, which are arranged sequentially in order, wherein each stage of the chamber is correspondingly connected to a storage box; at least one filter device, wherein one end of the filter device is disposed to be connected to a storage box corresponding to a current stage chamber by a first pipe, and another end of the filter device is connected to a next stage chamber by a second pipe. Furthermore, a plurality of valve switches are at least disposed on the first pipe or the second pipe.