To provide a new waterproof floor having excellent impact resistance and the durability and capable of maintaining the excellent nonslip property and the waterproof characteristic for a long time by eliminating the early peeling between layers due to the impact to be generated when automobiles repeatedly travel thereon, or repeatedly steer a steering wheel at the same part.

This waterproof floor is formed by laminating a primer layer 2, a waterproof layer, a non-slip layer 5, top coat layers 6 and 7 on a foundation bed 1. The waterproof layer is formed into the double structure of a first waterproof layer 3 having 45-50 degree of the spring type hardness (Shore hardness D) and a second waterproof layer 4 having 50-58 degree of the spring type hardness (Shore hardness D).