The invention discloses a method for preventing an ended support of a fully mechanized coal mining face from being stuck. The method specifically comprises the following steps of 1, additionally arranging a single row of anchor cables from an advanced support to a cross side of the ended support; 2, maintaining full-fracture-surface dinting all the time with the advanced support facing forwards; 3, additionally arranging double rows of single props in front of the advanced support to serve as a forepoling; 4, additionally arranging anchor cables in front of the advanced support timely; 5, adopting a dinting mode for lowering a reversed loader at the portion of the ended support which is stuck. According to the method, a top plate in front of the ended support can be reinforced in advance,and can be prevented from further sinking, larger pressure is applied to the ended support, dinting is conducted in advance, and the stroke of the ended support is ensured; the effect of preventing the ended support from being stuck is achieved, processing is also conducted after the ended support is stuck, a positive effect is achieved, the reversed loader at the ended support is subjected to dinting, the damage caused by blasting of the top plate is reduced, and processing of the ended support which is stuck is better facilitated.