The invention provides a molecular sieve / fiber composite material. The molecular sieve / fiber composite material comprises molecular sieves and fibers, wherein the molecular sieves are distributed on surfaces of the fibers and are in contact with the surfaces of the fibers directly, the particle size D90 of the molecular sieves is 0.01 to 50 microns, and the particle size D50 of the molecular sieves is 0.005 to 30 microns; and the molecular sieves are uniformly distributed on the surfaces of the fibers. The invention further provides a preparation method for the molecular sieve / fiber compositematerial and various uses of the molecular sieve / fiber composite material. According to the molecular sieve / fiber composite material, the preparation method therefor and various uses of the molecularsieve / fiber composite material, the problem of molecular sieve / fiber composite materials that molecular sieves are gathered on surfaces of fibers is solved for the first time, the molecular sieve / fiber composite material prepared is bran-new and has relatively high strength, elasticity restorability and dimensional stability, and thus, the composite material is firm and durable. The molecular sieve / fiber composite material provided by the invention is simple in structure, low in cost, high in stability, high in performance repeatability and high in practical efficiency and can be applied to the fields of arresting bleeding, facial beautification, deodorization, sterilization, water purification, air purification and antiradiation.