Lifting plug having improved insensitive performance for high explosive projectile

The present invention relates to a lifting plug having improved insensitive performance for a high explosive projectile, in which the lifting plug ensures long-term storage such as a prevention of maximum moisture absorption during storage of high explosives and has improved airtightness by attaching an auxiliary bolt and an O-ring in addition to a lock bolt to a window of the lifting plug. Furthermore, the lifting plug prevents rupturing or cracking of the lifting plug by changing a material and thickness of the lifting plug and is provided with a vent formed by an ignition of explosives igniting at lower temperature compared with a main charge and a supplementary charge, thereby improving a safety of the long-term storage, as well as improving insensitivity.