Device and method of automatically detecting sealing performance of filter element

The invention discloses a device for automatically detecting the sealing performance of a filter element. The device is used for detecting the sealing performance of a filter element. The filter element comprises a filter element head and a filter element body, and the filter element head is provided with a joint. The device is characterized by comprising a filter element fixing frame used for installing a filter element, a sealing pressing block capable of being connected with or disconnected from the joint, and a water tank located below the filter element fixing frame. The sealing pressingblock is connected with an air inlet pipe communicated with the filter element, a pressure gauge is arranged on the air inlet pipe, and the filter element fixing frame can ascend and descend relativeto the water tank so that the rotary melting position between the filter element head and the filter element body can sink into or leave the water surface of the water tank. The invention further discloses a detection method a