The invention relates to a flexible electromagnetic force loaded metal pipe fitting electromagnetic forming device and a method. The device comprises a capacitor power supply, a main coil module, an auxiliary coil module, a flexible coil module and a discharge switch; the main coil module, the auxiliary coil module and the flexible coil module form a driving coil in a regional modularizing manner; the main coil module is used for generating induction eddy currents and radial electromagnetic force; the auxiliary coil module is used for generating and adjusting axial electromagnetic force; and the flexible coil module is used for adjusting radial electromagnetic force. The device can provide controllable radial electromagnetic force and axial electromagnetic force to metal pipe fittings to eliminate the end effect, so that the workpiece deformation is more uniform, and the workpiece forming performance is improved.