To provide a toilet cleaner with which toilet cleaning work can be easily done and a toilet can be kept clean by disposing a cleaning paper sheet.

A bag-shaped water-soluble or water-insoluble disposable cleaning paper sheet 5 is disclosed which can be used instead of a toilet cleaning brush made of an easily soiled material such as a scrubber or sponge. The toilet cleaner has an implement to easily attach/detach the cleaning paper sheet to/from the cleaner by moving a slide tube 3 back and forth to open/close a paper pressing spring 2. The bag-shaped disposable cleaning paper sheet is preferably used for the toilet cleaner, however a conventional cleaning paper sheets can be used by folding up.