The invention relates to a thermal-state non-stop production replacement method of lattice bricks in a regenerative chamber of a coke oven. The method comprises the following steps: dismantling a coke blocking plate in a chute region at the part where a lattice brick needs to be replaced, part of sealing walls of the regenerative chamber and ancillary facilities thereof, and carrying out insulation treatment near the dismantling region; inserting the front end of a slide way into the bottom of the lattice brick needing to be replaced, hooking a through hole in the lattice brick needing to be replaced by adopting a brick hooking device, moving the lattice brick needing to be replaced out of the regenerative chamber along the slide way, then pushing a new lattice brick into the regenerative chamber by adopting the same method, and putting the new lattice brick in place; and re-building the sealing walls of the regenerative chamber, and recovering the facilities in the chute region. According to the invention, the slide way, the brick hooking device, a brick lifting device and other special tools are used for replacing lattice bricks, and the operation can be executed outside the regenerative chamber by operators, so that the construction is convenient and fast and the safety is high; and the lattice bricks are not easy to be broken, so that the problem of blockage of a lower layer of lattice bricks caused by replacing an upper layer of lattice bricks is avoided, the hot repair cost is greatly saved, and the hot repair difficulty is reduced.