With the continuous development of industry in the society, the demand for fresh water is also increasing, and the important of saving water has been the consensus of human being nowadays. In our daily life, toilets and bathrooms are the spaces that have multi-sources of water usage. This design is mainly concentrated in exploring some environmental Friendly proposals for the design of the modern sanitary equipment. “GREEN SWEEPER” is a multi-function water closet and it composes of the upper and lower portions. The main design concept of GREEN SWEEPER is “Recycle of waste water”. It can be treated as a large capacity water tank combining the function of wash basin and water closet. It saves space and makes use of the waste water generated from the daily life for flushing purpose. The large capacity water tank can also store and make use of waste water from the bathroom equipment and other domestic consumption above. “GREEN SWEEPER” provides high quality and environmental friendly living style.