The invention discloses a training fragile bullet. The training fragile bullet includes a metallic powder material, a binding material, and a composite plastic material. The training fragile bullet includes, by weight, 10-20 parts of the metallic powder material, 37-45 parts of the binding material, and 35-53 parts of the composite plastic material. The invention also discloses a method for manufacturing the training fragile bullet. The method includes the following steps: A, manufacturing a bullet die; B, injecting the metallic powder material, the binding material, and the composite plasticmaterial to the bullet die at the temperature of 140-240 DEG C, allowing the materials to become a molten material, wherein the parts by weight of the materials are 10-20 parts of the metallic powdermaterial, 37-45 parts of the binding material, and 35-53 parts of the composite plastic material; C, continuously applying pressure to the bullet die at the pressure of 200 pa-300 pa, and compacting the molten material; D, cooling the bullet die; and E, performing demoulding on the bullet die.