In view of the problem of the previous strict balanced binary tree needing a orderly sequence table to cre -ate,this paper proposes an algorithm which can also establish a strict balanced binary tree without the orderly se -quence table .In order to establish a strict balanced binary tree about keywords ,the algorithm needs to first establish a ascending double linked list about keywords , then it uses partition method to construct strict balanced binary tree root node and left and right subtrees .In order to ensure the correctness of the strict balanced binary tree , at the same time, it pres...