Abstract: A quick assembling floor mat has multiple reinforced plastic bars and multiple connecting strips. Each reinforced plastic bar has a body, a mounting seat formed on the top surface of the body, at least one metal reinforcing sheet mounted in the body to enhance the structural strength of the body and two connecting grooves respectively formed in the sidewalls of the body. Each one of the connecting strips is connected to two adjacent reinforced plastic bars and has two enlarged ends respectively formed on and protruding from the sides of the connecting strip and corresponding to the connecting grooves of the two adjacent reinforced plastic bars. The reinforced plastic bars only use a small amount of a metal material to reinforce, and this can reduce the cost of materials and can maintain the rigidity and the intensity of the quick assembling floor mat.