Support for a household appliance, comprising: a hydraulic plate; a sheath, fixedly connected with the hydraulic plate; a regulating element, which is arranged in the sheath and axially movable relative to the sheath; an accommodation chamber formed by the hydraulic plate, the sheath and the regulating element; a hydraulic medium, which is in the accommodation chamber and is compressed/expands depending on pressure changes to drive the regulating element to axially move in the sheath for leveling; wherein the support for the household appliance is configured to communicate with at least one further support for the household appliance to allow the hydraulic medium to flow between the supports; and the hydraulic plate is provided with a one-way flow stop mechanism for conducting the hydraulic medium in one direction; wherein the hydraulic plate is provided with a liquid flow passage for allowing the hydraulic medium to flow therein,; characterized in that the one-way flow stop mechanism comprises a one-way valve plate, and the one-way valve plate is arranged at the hydraulic plate to cooperate with the inlet /outlet of the liquid flow passage to control the hydraulic medium to flow out in one direction or flow into the accommodation chamber in one direction; and the one-way valve plate is made of a self-recovery elastic deformation material, the one-way valve plate covers hermetically on the inlet of the liquid flow passage, and the one-way valve plate is configured to deform under the pressure of the hydraulic medium to open the liquid flow passage, and recover under the action of an elastic deformation force to close the liquid flow passage after the flow of the hydraulic medium is stabilized. a hydraulic plate; a sheath, fixedly connected with the hydraulic plate; a regulating element, which is arranged in the sheath and axially movable relative to the sheath; an accommodation chamber formed by the hydraulic plate, the sheath and the regulating element; a hydraulic medium, which is in the accommodation chamber and is compressed/expands depending on pressure changes to drive the regulating element to axially move in the sheath for leveling; wherein the support for the household appliance is configured to communicate with at least one further support for the household appliance to allow the hydraulic medium to flow between the supports; and the hydraulic plate is provided with a one-way flow stop mechanism for conducting the hydraulic medium in one direction; wherein the hydraulic plate is provided with a liquid flow passage for allowing the hydraulic medium to flow therein,; characterized in that the one-way flow stop mechanism comprises a one-way valve plate, and the one-way valve plate is arranged at the hydraulic plate to cooperate with the inlet /outlet of the liquid flow passage to control the hydraulic medium to flow out in one direction or flow into the accommodation chamber in one direction; and the one-way valve plate is made of a self-recovery elastic deformation material, the one-way valve plate covers hermetically on the inlet of the liquid flow passage, and the one-way valve plate is configured to deform under the pressure of the hydraulic medium to open the liquid flow passage, and recover under the action of an elastic deformation force to close the liquid flow passage after the flow of the hydraulic medium is stabilized.