Collision threshold realizing method for train collision load energy absorbing component

The invention discloses a collision threshold realizing method for a train collision load energy absorbing component. The realizing method is characterized by comprising the following steps: setting a load energy absorbing structure at the end part of the train body; setting a structural hole on the load energy absorbing structure at the end part of the train body; and realizing collision threshold by use of the structural hole. The collision threshold realizing method for a train collision load energy absorbing component realizes quantitative control on the collision threshold of the energy absorbing component in train collision through the structural improvement of the energy absorbing component. Through structural change control on the energy absorbing component, controllability on the damage threshold and structure threshold is realized, the realizing method is reasonably designed, has an obvious effect, can be applied to the design and installation of the load energy absorbing component at the end part of the train body, and effectively ensures safe energy absorbing protection in train collision.