The present invention relates to a combined application of isothiocyanate compounds and anti-cancer drugs, in particular to a composition, comprising: (A) a therapeutically effective amount of a first active ingredient, the first active ingredient being an isothiocyanate compound or derivative thereof； (B) a therapeutically effective amount of a second active ingredient, the second active ingredient being anti-cancer drugs effecting or influencing DNA, kinase inhibitor anti-cancer drugs or endocrine therapy hormonal anti-cancer drugs, the mass ratio of the first active ingredient and the second active ingredient being from 1:10000 to 10000:1. Also disclosed are an active ingredient composition, kit, pharmaceutical composition and uses thereof in the preparation of anti-cancer drugs. The composition, active ingredient composition and kit have excellent effect of inhibiting the growth of cancer cells.
