The invention relates to a belly loose muscle exercising and training device which comprises a base plate, a fixing support, a foot support, an exercising device and an auxiliary device. The fixing support is installed in the middle of the upper end of the base plate. An annular groove is formed in the middle of the fixing support, a yoga ball is arranged inside the annular groove, the foot support is installed between the base plate and the left end of the fixing support, the exercising device is installed at the upper end of the fixing support, and the auxiliary device is installed between the base plate and the right end of the fixing support. The problems that when an existing belly exercising instrument is in use, the belly exercising effect is poor, vibration massage cannot be performed on the belly initiatively, loose muscles cannot be protected, and belly muscles of the user are likely to be strained can be solved, and the device has the advantages that the using effect is good, the requirement for training of different strengths can be met, vibration massage can be performed on the belly, meanwhile, the loose muscles can be protected, and belly muscle strains are avoided.