The invention relates to a coke oven door spring blade edge repair device which comprises a platform, wherein supporting strips are welded and fixed to the platform; pressing plates are arranged on the platform and are connected with the platform through long bolts; spring blade edges are tightly pressed below the pressing plates and are locked on the supporting strips through locking devices; each locking device comprises a fastener and two locking bolts; the every two locking bolts are welded on the two sides of each fastener; the locking bolts are cooperatively used with the fasteners and have fixing and clamping effects. According to the repair device, effective parts of a few waste spring blade edges can be re-assembled into a spring blade edge capable of being normally used, so that the waste spring blade edges are recycled and the production cost is reduced.