The invention discloses novel high flow injector nozzle matching parts of a common rail injector. The novel high flow injector nozzle matching parts of the common rail injector comprise a needle valve body, wherein the upper segment of the needle valve is oriented by the inner wall of the needle valve body; an oil inlet passage is arrange between the upper segment of the needle valve and the inner wall of the needle valve body; the bottom end of the needle valve is provided with a cone typed needle valve sealing receptacle surface; the bottom of the needle valve body is provided with a needle valve body conical surface and a pressure chamber; the needle valve body conical surface is matched with the needle valve sealing receptacle surface; the side wall of the pressure chamber is provided with spray orifices; an included angle alpha 1 formed by the needle valve sealing receptacle surface is smaller than an included angle alpha 2 formed by the needle valve body conical surface. Compared with the prior art, the novel high flow injector nozzle matching parts of the common rail injector have the advantages that the pressure loss at the needle valve sealing receptacle surface of the injector nozzle matching parts is reduced; a high injection quantity is achieved during a certain spraying persistent period; the response speed of the needle valve opening and closing is improved so that the multi-injection capacity can be improved; the volume of the pressure chamber is reduced to control the emission of HC and PM; the installation and application to a small motor are convenient.