Abstract: A strip foam floor mat includes a rectangular main body with two long sides and two short sides, and each side has plural complementarily shaped first convex teeth and first notches disposed apart from one another, a pair of complementarily shaped second convex tooth and second notch disposed at each corner at both ends of each side, and a pair of complementarily shaped third convex tooth and third notch disposed adjacent to each other and at positions of the multiple length of the short side along each long side, and the third convex tooth is in the same protruding shape of the second convex tooth when the two main bodies are spliced, and the third notch is the same concave shape of the adjacent second notch when the two main bodies are spliced.