The invention discloses a permanent-magnet vibration power generating device for small-power electronic equipment. A lower cylindrical permanent-magnet spring permanent-magnet body and a cylinder skeleton are fixed on the inner side of the bottom of a shell of the device, an upper cylindrical permanent-magnet spring permanent-magnet body is fixed on the inner side of the top of the cylinder skeleton, and an electric energy processing circuit board is fixed on the outer side of the top of the cylinder skeleton; a middle circular induction coil is directly wound around the cylinder skeleton; the outer side of the upper end of the shell is embedded into the positive and negative pole output ends of a power supply; two end coil skeletons are respectively adhered to the inner sides of the upper and lower cylindrical permanent-magnet spring permanent-magnet bodies; two end induction coils are respectively wound around the outer sides of the two end coil skeletons; and a cylindrical permanent magnet oscillator is suspended between the end coil skeletons. The power generating device disclosed by the invention can reduce the dependence of equipment to batteries, and has the advantages of simple and clear structure, high reliability and low application cost, and the like.