Household garbage treatment system and method

The invention discloses a household garbage treatment system. The household garbage treatment system comprises a crushing device, a dehydrating and exhausting device and a packaging and sealing device. The smashing device comprises a smashing cavity, an inlet cavity and a smashing mechanism, the inlet cavity is located at the top of the smashing cavity, the inlet cavity and the smashing cavity are connected through a first flange valve, and the smashing mechanism is located in the smashing cavity. The dewatering and exhausting device comprises a dewatering and exhausting chamber, a vacuumizing system, a peculiar smell treatment mechanism and a heater, the peculiar smell treatment mechanism is used for removing peculiar smell in the garbage, and the heater is used for heating moisture in the garbage in the dewatering and exhausting chamber. The invention further discloses a household garbage treatment method, the novel convenient, sanitary and environment-friendly household garbage treatment system and method