The invention discloses a compact water-saving toilet, comprising a ceramic main body, an energy-accumulating storage barrel, and a press-type flashing valve, wherein the ceramic main body comprises a housing body, a sewage pool and a blow-off pipe; a flushing cavity is formed in the upper end part of the sewage pool; the housing body is provided with a tread step and is fixed with an intake valve; the energy-accumulating storage barrel comprises a barrel body, an end cover, a rodless piston and a thrust spring; the end cover is provided with a water supply joint; the press-type flashing valve is fixed on the front surface of the end cover; the valve body is provided with an intake end, a flushing joint and a pressure rod; the intake end is communicated with an inner cavity of the energy-accumulating storage barrel; the flushing joint is connected with the flushing cavity through a flush pipe; the upper end of the pressure rod passes through the tread step and then is fixedly connected with a pedal. Compared with an existing product, the compact water-saving toilet is compact, small and exquisite in structure, small in occupied space after installation, good in flushing effect, excellent in water-saving property, free of a power supply, relatively safe, convenient and sanitary, and is operated by virtue of the pedal, and the displacement and the pressure are significantly improved.