The processing technology of Pugionium cornutum L. flexible package can is determined. The results indicate that Cu²⁺ is a kind of perfect green-keeping reagent which is used to keep the fresh green color of Pugionium cornutum L. in the pH ranged 3.5～4.5. The Ca²⁺ of different concent rations is also used to observe the effect of keeping brittleness to Pugionium cornutum L. The normal temperature pasteurism could meet the needs of Pugionium cornutum L. can commercial sterilization in the soup of can's pH value below 4.5.