The toilet occupies a lot of limited space in a small toilet. Although we cannot dismantle it, we can also "simplify" the bloated toilet. This foldable toilet separates the water storage tank from the pool and pipe parts, and the rear part can be folded up and down within a semicircular track to improve space utilization. When in use, the pipe is separated from the sewer pipe and cannot be flushed. Only when the toilet is folded up for convenience will the water outlet spray water to flush the inner wall of the toilet. According to reports, this design can save 50% of flushing water.