The present invention relates to an ocular surface applied medicament for treating drug used for treating eyes immunological disease and inhibiting proliferation and neovascularization, wherein rapamycin is used as active component at 0.01-2% by weight. And the ocular surface applied medicament provided by the present invention can be used for treating syndrome, allergic conjunctivitis, giant papillary conjunctivitis, vernal conjunctivitis, atopic keratoconjunctivitis, pterygium, Mooren ulcer, Stevens Johnson syndrome, dry eye, scleritis, episcleritis, various tunicauveae inflammation and the like, and also can be used for treating eye trauma after cornea transplanting and preventing fibrogenesis, adhesion, and cicatrisation, and inhibiting neovascularization after operation.