Gas-assisted injection molding die and injection molding method

The invention provides a gas-assisted injection molding die and injection molding method. The gas-assisted injection molding die comprises a fixed die body and a moving die body, wherein the fixed die body is connected with the moving die body, and comprises a panel, a sprue plate and a plate A; the panel is arranged at the top of the fixed die body; the sprue plate is arranged at the lower part of the panel; the plate A is arranged at the lower part of the sprue plate; the moving die body comprises a plate B, two pieces of square iron, a baseplate, an oil cylinder and a sliding block embedded needle guide block; the baseplate is arranged at the bottom of the moving die body; the two pieces of square iron are arranged at the upper parts of two sides of the baseplate; the middle parts of the two pieces of square iron are of hollow structures; the plate B is arranged at the upper parts of the two pieces of square iron; the sliding block embedded needle guide block is arranged at the front end of the plate B; an