Abstract: A system for dry execution of finishing material comprises a quadrangle bar to fix to an outer wall of a structure, a fixing bracket to install by fixing both ends thereof to the quadrangle bar, and a brick having an engaging groove formed in one surface facing the fixing bracket and being engaged with the fixing bracket in a fitting manner, wherein the fixing bracket comprises an engaging plate for allowing the brick to engage with the fixing bracket by locking engagement operation to the engaging groove, a load supporting plate provided between the engaging plates neighboring in up and down directions to withstand a load, an elastic plate providing an elastic force to push the brick outward after the brick is caught on the fixing bracket, and a connection plate which is respectively provided at upper and lower ends of the fixing bracket and connected to another fixing bracket.