The present invention relates to a scheduling information data storage sharing method. The method is characterized in that the storage of the electric power scheduling information is divided into two levels, and the interactive communication is realized between the two levels; a total server is arranged in the high level and is responsible for receiving, storing and transmitting the all scheduling information data of subareas; a server is arranged in each subarea of the low level, and is responsible for only storing and transmitting the scheduling information data in the subarea to the total server, and can receive the information transmitted by the total server according to demands. The communication among the total and branch servers is based on an asynchronous mode, namely, within one data acquisition cycle, one branch server can send data information to the total server immediately to apply the data information timely after finishing sampling without needing to wait other branch servers. The advantages of the data storage mode are that: on one hand, the servers of the two levels can be standby for each other, the safety of the data information is guaranteed, and the memory capacity of the branch servers is small; on the other hand, an asynchronous communication strategy facilitates the real-time sharing of the scheduling information, enables the utilization efficiency of the data information to be improved, and guarantees the reliable operation of a power grid.