The invention relates to the technical field of leg movement devices, in particular to a device for leg movement of ICU patients, which comprises a bed body, a mounting groove is formed in the position, close to the bed tail, of the upper end face of the bed body, a rotating plate is mounted at the end, close to the bed tail, of the mounting groove through a horizontal rotating shaft, an electromagnet is embedded in the end, close to the bed head, of the bottom face of the mounting groove, a magnet block matched with the electromagnet is embedded in the lower end face of the rotating plate, the magnetic poles of the close ends of the magnet block and the electromagnet are the same, two first electric telescopic rods corresponding to each other are mounted at the position, located at the bed tail, of the upper end face of the bed body, and the first electric telescopic rods are arranged along the length direction of the bed body. When the device is used, the electromagnet is set to workintermittently, so that the legs of a patient can move automatically, the operation process is convenient and easy, and the labor intensity of medical staff or family members of the patient is effectively reduced.