The invention discloses a method and a system for hashing busy processing nodes. The method comprises the following steps of setting a message queue, a plurality of hash processing nodes and operation record sheets for busy processing nodes; transmitting a data processing order received by the busy processing nodes to one of the plurality of hash processing nodes, and recording operation of the order to the corresponding operation record sheet; writing back operation records in each operation record sheet to the busy processing nodes in real time; writing back the operation records which are not written back and/or not successfully written back into the operation record sheets to the busy processing nodes in a non-real-time manner. The invention also discloses a hashing system of the corresponding busy processing nodes. According to the invention, resource conflict of a data processing system can be lowered, phenomena such as deadlock and overtime are avoided, and stability and robustness of the data processing system are greatly improved.