An RF coil includes a first loop coil element including a first plane closed by a first coil line and a second loop coil element including a second plane, wherein the first loop coil element and the second loop coil element move while maintaining a facing state to vary the square measure of a facing area in which the first coil plane and the second coil plane face each other. The first loop coil element includes a first spreading part having a first coil line disposed such that a distance of opposing by the first coil line parallel to a first moving direction widens in the first moving direction, in a direction normal to the first moving direction in which the movement takes place such that the square measure of the facing area increases relative to the second loop coil element in a direction parallel to the first plane.
