An integral protection removable system for motor vehicles without body shell, which comprises a plurality of longitudinal, transversal and diagonal bars, both removable and combinable to each other, which cover the sides below and above the height of the seat of the vehicle and which define, as a whole, a substantially ovoid configuration having its spherical end directed to the back of the vehicle and its oval end directed to the front part of the vehicle, capable to incorporate covering panels, fixed and/or removable, capable of guaranteeing a high resistance to all kind of impacts and providing a safety structure which is comfortable, practical and with novel performance, with the exclusive characteristic in the field of cages of integral protection for motor vehicles of forming a totally modular structure capable to be removed from the chassis of the vehicle.