The invention relates to a bicycle with navigation and power generation functions. The bicycle comprises a frame, a handlebar, a front wheel, a rear wheel, a driving device, a front wheel disc brake and a rear wheel disc brake, wherein the handlebar, the front wheel, the rear wheel, the driving device, the front wheel disc brake and the rear wheel disc brake are arranged on the frame. The front wheel disc brake comprises a front wheel brake disc. The rear wheel disc brake comprises a rear wheel brake disc. A light power generator is arranged at the front end of the frame, a power generation gear is arranged on a rotary shaft of the light power generator, power teeth are arranged on the outer edge of the front wheel brake disc, the power generation gear is engaged with the power teeth, a storage battery electrically connected with the light power generator is arranged on the frame, and a navigator electrically connected with the storage battery is arranged on the handlebar. Compared with the prior art, according to the product, the light power generator is driven by the front wheel brake disc to rotate, current is generated and stored in the storage battery, power is continuously supplied to the navigator, therefore, a navigation function is achieved, and use is convenient and safe; due to the fact that the diameter of the brake discs is far smaller than that of the wheels, the power generator is driven to generate power, and efficiency is higher.