System for actively preventing concrete beam collision and using method of system

The invention discloses a system for actively preventing concrete beam collision. The system comprises adjacent concrete beam a and concrete beam b, wherein a main electromagnet a is encapsulated in the concrete beam a through a steel plate a, and a main electromagnet b is encapsulated in the concrete beam b through a steel plate b; the concrete beam a is provided with a left side electromagnet aand a right side electromagnet a, and the concrete beam b is provided with a left side electromagnet b and a right side electromagnet b; a central displacement monitoring device is arranged in an opening hole a of the steel plate a, and displacement monitoring devices are arranged in the left side electromagnet a and the right side electromagnet a correspondingly; and a single-chip microcomputer circuit system correspondingly forms circuits with the main electromagnet a, the main electromagnet b, the left side electromagnet a, the left side electromagnet b, the right side electromagnet a and the right side electromagn