A glue injection unit of a glass fiber reinforced plastic tubular product pultrusion glue-injection device and a glue-injection mold relate to a device that dips glue solution in pultrusion equipment and leads glass yarn and felt to be compounded and thermoset so as to form continuous sectional materials, wherein the glue-injection unit comprises the glue-injection mold and a mandrel capable of leading glass fiber reinforced plastic sectional material to hollowly enter a pultrusion mold, wherein the glue-injection mold is provided with a mandrel through hole through which the mandrel can pass, injection cavities are arranged along the mandrel through hole and a subpressure cavity is arranged between adjacent injection cavities. The glue injection mold arranged for the glue-injection unit of the proposal helps reasonably configure the structure of the injection cavities and the subpressure cavities, thus being capable of realizing the work of dipping the glass yarn and felt by injecting glue solution in a closed mold device, not only effectively avoiding the problem of free volatilization of the glue solution, but also effectively ensuring the stability of viscosity of the glue solution in the whole pultrusion process. The proposal provides two implementation solutions of an integral forming mold and a mold type block, thus being easier for industrial promotion.