Crushing method and system for beam column

The invention provides a crushing method and system for a beam column, and the method comprises the steps that S1, a to-be-crushed material is placed on a conveying mechanism, the conveying mechanism brings the to-be-crushed material into a crushing mechanism and stops, and the crushing mechanism comprises a shearing device and a crushing device; s2, two groups of front shears of a shearing device rotate to shear the to-be-crushed materials, and two groups of rear shears of a crushing device get away from or get close to each other to crush the to-be-crushed materials; when the rotation range of the two groups of front scissors reaches a preset value and the relative movement distance of the two groups of rear scissors reaches a preset value or the two groups of rear scissors are in an open standby state, the conveying mechanism is started, drives the to-be-crushed materials to move for a preset distance and then stops; and repeating the step S2. After the shearing device and the crushing device work in place