The invention discloses a light and thin polyvinyl chloride floor. The floor mainly comprises, by weight, 3-15 parts of polyvinyl chloride resin, 33-54 parts of a plasticizing modifier, 13-22 parts of polyalkenyl methyl ether, 4-15 parts of polyethylene naphthalate, 3-15 parts of acrylic acid, 7-21 parts of chlorinated polyvinyl chloride, 13-23 parts of styrene butadiene rubber, 5-15 parts of cotton fibers, 5-15 parts of semidry oil, 10-18 parts of fiber reinforced polypropylene, 10-18 parts of a fabric coating adhesive, 5-18 parts of polyacrylate pressure-sensitive rubber latex, 5-15 parts of vinylidene chloride and 10-25 parts of a heat stabilizer. The light and thin polyvinyl chloride floor made in the above manner contains no radioactive elements, soluble volatile matters or carcinogenic substances.