To provide a bed device that can be readily attached to or detached from a rack device, and to provide a magnetic resonance imaging apparatus.SOLUTION: A bed device 30 includes: a top board 303 capable of placing a subject thereon； a support member 300 for supporting the top board； wheels 306a, 306b for supporting the support member so as to be capable of travelling； connection mechanisms 30a, 307 capable of being attached to or detached from a rack device 10 for imaging the subject； and an operation handle 311 for operating the connection mechanisms.SELECTED DRAWING: Figure 3【課題】架台装置からの着脱操作が容易な寝台装置および磁気共鳴イメージング装置を提供する。【解決手段】寝台装置３０は、被検体を載置可能な天板３０３と、前記天板を支持する支持部材３００と、前記支持部材を走行可能に支持する車輪３０６ａ、３０６ｂと、前記被検体を撮影する架台装置１０と着脱可能な連結機構３０ａ、３０７と、前記連結機構を操作する操作ハンドル３１１と、を備える。【選択図】図３
