In a combined injection-molding and pressing machine according to the present invention, an injector (10a) of horizontal injection apparatus (10) is disposed below a stationary die plate (2) of a vertical press (1), an injection nozzle (10b) of the injector (10a) is formed into an L-shaped, and the injection nozzle includes a valve (10c) for opening and closing a resin passsage. Corresponding to extension and contraction of the horizontal injection apparatus (10), a base (14) of a platform (4) mounting thereon the horizontal injection apparatus (10) is allowed to slide about the injection nozzle (10), and the L-shaped injection nozzle (10b) is caused to contact with a lower mold (3) at a predetermined surface pressure. Therefore, color changing and purging of resin is more efficient and complete. No need of a hot runner permits to employ an inexpensive and versatile mold that is more widely used in common. Since resin is surely loaded through the short resin passage, molding with stable quality can be produced. Even when the horizontal injection apparatus (10) extends and contracts, the lower mold (3) remains immobile and no resin is leaked. Further, the injector (10a) can be moved outwardly away from a position below the stationary die plate (2), which facilitates replacement and/or inspection of the injection nozzle (10b), a screw and so forth.