A bicycle shift operating device is provided with a mounting bracket, a shift unit, an attachment member and an operating member. The shift unit is disposed in the mounting bracket. The attachment member is removably attached to the mounting bracket. The operating member is movably mounted on the attachment member. The operating member is mechanically coupled to the shift unit to operate the shift unit while the attachment member is attached to the mounting bracket, and the operating member is mechanically disengaged from the shift unit while the attachment member is removed from the mounting bracket.