Armillaria mellea is chosen as the main material,adding onion,salt,green prickleyash and modified starch to develop catchup.By sensory evaluation,orthogonal test is used to get the optimum formula of Armillaria mellea catchup.The optimum formula of catchup is as follows:Armillaria mellea of 100 g,onion amount of 7%,salt amount of 6%,green prickleyash amount of 0.6%, modified starch amount of 4%,sucrose amount of 3%,ginger powder amount of 0.4%.The Armillaria mellea catchup has unique flavor and uniform texture.