Injection molding method

The embodiment of the invention discloses an injection molding method. The injection molding method comprises the steps that: a fixing device, an insert and a mold are provided, wherein a cavity is formed in the mold, the fixing device is located in the cavity, the fixing device is provided with a bearing surface, the bearing surface is used for bearing the insert, an air hole is formed in the fixing device, the air hole is provided with a first opening part and a second opening part, the first opening part is located on the bearing surface, the second opening part is used for being connected with a negative pressure device, and one end face of the insert is opposite to the first opening part; negative pressure is formed in the air hole; an injection molding material is injected into the cavity; and after injection molding is completed, the injection molding product is separated from the cavity, and the insert is separated from the bearing surface. 本公开实施例公开了一种注塑方法。所述注塑方法包括：提供固定装置、嵌件及模具，其中，在所述模具的内部设置有型腔，所述固定装置