A stand assembly for an RF coil has a base, a slide carriage and a connection assembly. The slide carriage is slidably disposed on the base. The connection assembly comprises a first connecting member and a second connecting member. A first slide groove is formed in the first connecting member. The second connecting member comprises a first slider, the first slider being slidable along the first slide groove in a sliding direction and fixable at a preset position. One of the first connecting member and the second connecting member is in fixed connection with the slide carriage, and the other is in fixed connection with the RF coil. The stand is capable of being used universally for multiple types of RF coils.