The invention provides a die and a method for manufacturing a product by utilizing the die. The die comprises a front die and a back die, wherein the front die comprises a front template, the back die comprises a back template, the front template is provided with a front die core, and the back template is provided with a back die core. When the front die and the back die are closed, the front die core and the back die core form a cavity, a first cavity comprises a bottom surface cavity and a side surface cavity; and the front die comprises a material injection mechanism, a material injection hole is arranged at the bottom surface cavity, and the material injection mechanism injects a material in the bottom surface cavity from the material injection hole, and the injected material flows from the bottom surface cavity to the side surface cavity so that the product is formed in the cavity.