A composition for flooring containing coconut fibers according to the present invention comprises: (A) 100 parts by weight of acrylonitrile-butadiene latex consisting of 20 to 60 parts by weight of acrylonitrile, 40 to 80 parts by weight of butadiene, 1 to 3 parts by weight of a first emulsifier, and 4 to 7 parts by weight of an acrylic monomer; (B) 3 to 6 parts by weight of a vulcanizing agent obtained by mixing sulfur, EZ, MZ, and a second emulsifier in a ratio of 3:1:1:0.1; (C) 2 to 3 parts by weight of a zinc oxide; (D) 2 to 5 parts by weight of an antioxidant; and (E) 20 to 40 parts by weight of calcium carbonate.