Cleaning brush for stainless steel water tank

The utility model discloses a cleaning brush for a stainless steel water tank, which comprises two brush head bodies (1) and a brush holder (3), wherein bristles (2) are arranged on the brush head bodies; rubber plates (4) for collecting are arranged on the outer sides of the bristles of the brush head bodies; and a magnet block (5) is connected with the brush holder through a connecting rod. When the cleaning brush is in use, metal residues are washed by the bristles of the two brush head bodies and are collected in a position in the bristles close to the brush holder by the rubber plates; and then the metal rust residues washed by the brush are absorbed by the magnet block, so that repetitive rusting is avoided.