To provide an injection piping cleaning tool facilitating cleaning work of an injection piping and improving safety at the time of the work.

This invention relates to an injection piping cleaning tool 1 installed at a cooling piping 200 for flowing sea water used for cooling so as to clean an injection piping 120 for injecting aqueous solution of ferrous sulfuric acid within the cooling piping 200. The tool comprises a metallic rod 10 inserted into the injection piping 120 and longer than the injection piping 120 and an umbrella 20 fixed to the metallic rod 10. The umbrella 20 comprises a sheet-like umbrella clothes 22 and a cylindrical body 24 arranged at the central part of the umbrella clothes 22 and fixed to the metallic rod 10. A length ranging from the cylindrical body 24 at the metallic rod 10 to an end part inserted into the injection piping 120 is longer than the injection piping 120. In the case where the metallic rod 10 is inserted from an opening part 128 of the injection piping 120, the umbrella clothes 22 covers from the outside of the injection piping 120 to a location near the opening part 128 to protect workers against sea water injected out of the injection piping 120.