The invention relates to the technical field of smart fitness, in particular to smart energy-saving fitness equipment based on electromagnetic force. Through the technical design of adopting the electromagnetic force to adjust the fitness level, the technical problems that traditional mechanical fitness equipment has a monotonous function and exercising level and cannot be adjusted are solved, andthe technical effect that the magnitude of tension force, namely the training level, can be adjusted at any time according to user requirements is achieved. The general-separate-separate modularizeddesign method of an MCU unit, health monitoring, electricity generating modules, exercising modules and the like is adopted, the technical problems that the system is complicated and the management isdifficult are solved, and the technical effects that the whole fitness equipment is definite in labor division and simple in management and maintenance are achieved; the technical design of adoptingthe electromagnetic force for driving an electric generator for electricity generation is adopted, the technical problem that the power consumption of the fitness equipment is large is solved, and thetechnical effects of self-electricity-generating, self-storing and electricity saving are achieved.