Abstract: In view of problems of wasting storage space and frequent CPU operation existed in storage management methods of chained storage linear table and sequenced storage linear table in embedded system without operation system, the paper proposed an improved storage management method of sequenced storage linear table. The method uses sequenced storage mode and changed head (tail) address to store relative information, which not only saves storage space but also reduces unnecessary CPU operation. The application in fault record of a microcomputer relay protection device validates feasibility of the method.