Unfreezing device and refrigerator having the same

The invention provides an unfreezing device. The unfreezing device includes a cylindrical body, a device door body, a radio frequency generation module, an upper electrode plate and a lower electrodeplate; the cylindrical body is limited to have an unfreezing cavity having a forward opening and used for placing a to-be-processed object; the device door body is arranged on the forward opening of the unfreezing cavity and used for opening and closing the unfreezing cavity; the radio frequency generation module is configured to generate radio frequency signals; the upper and lower electrode plates are respectively and horizontally arranged on the top and bottom walls of the unfreezing cavity and electrically connected to the radio frequency generation module to generate radio frequency wavesof corresponding radio frequency in the unfreezing cavity according to the radio frequency signals and unfreeze the to-be-processed object in the unfreezing cavity; the cylindrical body and the device door body are respectively provided with electromagnetic shielding characteristics; and the electromagnetic shielding characteristic arranged on the cylindrical body and the electromagnetic shielding characteristic arranged on the device door body are arranged in conductive connection so as to reduce magnetic leakage from the unfreezing device when the device door body is closed. Thus, the magnetic leakage of the unfreezing device can be effectively reduced, and the harmfulness to users can be reduced.