The invention discloses an integrated side excitation electromagnetic slip ring type automatic balance device. A movable ring and a fixed ring are integrally connected. The movable ring can rotate along with a balanced rotor and comprises a movable ring shell, an inner excitation ring, outer excitation rings and a balance weight disc. The inner excitation ring and the outer excitation rings, all of which are coaxial, are fixed to the movable ring shell, and the two outer excitation rings are located on different sides of the inner excitation ring. The fixed ring comprises a stator and coil iron rings. The stator is coaxially arranged in the inner excitation ring in a clearance manner. The balance weight disc is coaxially arranged in the inner excitation ring and is in clearance fit with the inner excitation ring and the outer excitation rings. An electromagnetic matching part is arranged among the inner excitation ring, the outer excitation rings and the balance weight disc. The balance weight disc is fixedly provided with balance weights and compensation blocks. The two sides of the stator are fixedly connected with the two coil iron rings internally provided with coils. After the coils are powered on, an alternating magnetic field can be generated on the side face of the movable ring and can be matched with the electromagnetic matching part to drive the balance weight disc to rotate. According to the purpose, the integrated side excitation electromagnetic slip ring type automatic balance device is provided and is of the structure that the movable ring and the fixed ring are connected into a whole, installing can be achieved at the shaft end and can also be achieved inside a shaft, installing is easy, and the vibration balance effect is good.