Let q be a large prime, and χ the quadratic character modulo q. Let φ be a self-dual Hecke-Maass cusp form for SL(3, Z), and u j a Hecke-Maass cusp form for Γ 0 (q) ⊆ SL(2, Z) with spectral parameter t j . We prove, for the first time, some hybrid subconvexity bounds for the twisted L-functions on GL (3), such asfor any ε > 0, where θ = 1/23 is admissible. The proofs depend on the first moment of a family of Lfunctions in short intervals. In order to bound this moment, we first use the approximate functional equations, the Kuznetsov formula, and the Voronoi formula to transform it to a complicated summation; and then we apply different methods to estimate it, which give us strong bounds in different aspects. We also use the stationary phase method and the large sieve inequalities.