An ankle coil is disclosed that includes a first coil portion and a second coil portion. The first coil portion has a first channel that is hollow and extends in a first extension direction. The second coil portion has a second channel that is hollow and extends in a second extension direction intersecting with the first extension direction. The second coil portion is rotatably arranged on the first coil portion, with an axis of rotation perpendicular to both the first extension direction and the second extension direction, and notches are provided at a joint between the first coil portion and the second coil portion. The ankle coil provided in the present disclosure in use allows an ankle to be placed in a naturally relaxed state, and can be snugly fitted with the foot, so that the comfort of a user is improved while ensuring the imaging quality.