The utility model discloses a novel crashproof stand for collapsing rock fall dredges structure, including crashproof stand base, connecting rod, rail stand, large -scale junked tire divides ring layer filler and three angle iron frame, wherein, installs vertical three piece ascending rail stands on the crashproof stand base, is equipped with the three -layer connecting rod between the rail standfrom bottom to top, large -scale junked tire makes the horizontal direction by fixed in emboliaing three rail stands, and partial ring layer is packed in every tire, packs the sand in the hoop cavityof tire, packs the rubble in vertical cavity that the range of tire column formed, the top of rail stand is connected with three angle iron frame to the ascending motion of the restriction vertical side of tire. The utility model is used for the rock fall that collapses dredges the pointed end of structure, the rock fall's that both can the active absorption collapses impact energy changes the rock fall's that collapses direction of motion, again can be to dredging structure protection, and the life of structure is dredged in the extension, has still realized recycling of junked tire, rail simultaneously.