The invention discloses a wireless electric floor drain capable of shearing and being sealed. The floor drain comprises a shell installed in the ground and a sewer connecting assembly communicated with a sewer; the shell is internally provided with a function assembly, and the function assembly is used for controlling whether or not the shell is communicated with the sewer connecting assembly or the outside, crushing sundries which enter the shell and supplying power to the whole system; a floor drain cover board is arranged on the portion, under the function assembly, in the shell, and waterflow discharging holes are formed in the floor drain cover boards. According to the floor drain, two sealing structures are used, by means of the upper-layer sealing structure, not only is whether ornot the water flow discharging holes in the floor drain cover board and the shell are communicated changed, but also impurities which pass the water flow discharging holes can be sheared, and then thelower-layer sealing structure controls the shell and the sewer to be communicated to discharge the processed impurities and waste water; the power of the floor drain comes from a power supply part which can be charged in a wireless mode and is located in the floor drain, use of the low voltage is safe, charging is safe, sealing and cutting are integrated, the cost is low, maintenance is convenient, and installation is convenient and fast.