The invention discloses a vibration damping steel angle grinding device based on electric ion neutralization. The vibration damping steel angle grinding device comprises a connector lug, a grip, a control groove seat, a vibration-damping power dissipation device and a grinding disc. By reducing vibration of grinding and polishing in the upper and lower directions and the left and right directions,the vibration feeling of an arm is relieved for a user during use, the damage to the soft tissue in the arm due to the vibration is reduced, the discomfort is reduced, and the user is allowed to focus on using a light disk angle grinding device to improve the polishing quality without expending energy to control and adapt to the vibration; and meanwhile, a static elimination rod prevents a largeamount of static electricity from accumulating, and continuously neutralizes the static electricity generated by the grinding disc, so that the static electricity is effectively prevented from generating an electrostatic effect on fingers or palms of the user, static damage to a human body is prevented, and dust is prevented from being adsorbed on the surface of the light disk angle grinding device due to the static electricity.