A mobile induction and power-generation device includes an induction movement magnetic element, a displacement magnetic element, and an induction coil. The displacement magnetic element has at least one magnetic pole set each having two adjacent magnetic poles with opposite polarities, and the at least one magnetic pole set moves along a movement trajectory relative to the induction movement magnetic element. The induction coil is disposed adjacent to the induction movement magnetic element or the displacement magnetic element, is induced by an alternating magnetic field generated by the movements of the induction movement magnetic element or the displacement magnetic element, and generates an induction current due to the alternating magnetic field.