The invention discloses a movable LED lamp holder for livestock breeding. The movable LED lamp holder for livestock breeding comprises a support column and an adjusting column; the bottom end of the support column is fixedly connected with a base; universal wheels are fixedly connected to the bottom of the base; chutes are formed in the inner walls of two sides of the support column; the bottom end of the adjusting column is inserted in an inner cavity of the support column; slide blocks are fixedly connected to the bottom ends of two sides of the adjusting column; the two slide blocks are positioned on the inner sides of the two chutes; and adjusting blocks are fixedly connected to the left and right side surfaces of the support column. Through cooperation of the support column, the base,the adjusting column, the slide blocks, the adjusting blocks, a thread handle and a friction block, the problem of incapability of adjusting the height of a traditional movable lamp holder for livestock breeding is solved; and through cooperation of a connecting block, a connecting base, a mounting box, an LED lamp body, an insertion through hole, an insertion rod, a buffer gasket and a fixed sleeve, the problem of inconvenience to maintain an LED lamp body in the traditional lamp holder for livestock breeding is solved.