The invention provides a realizing method for logic programming. The method includes the steps that according to needs, needed elements are determined, and connecting relations between the elements are determined; the determined elements and the determined connecting relations between the elements are stored as a configuration file; at the initial stage of logic programming, the configuration file is analyzed, and instance names of the elements, an execution sequence between the elements and the connecting relations between the elements are obtained; according to the instance names of the elements, the execution sequence between the elements and the connecting relations between the elements, an executable task chain is generated; at the operation stage of logic programming, all tasks of the task chain are sequentially executed. The invention further provides a realizing device for logic programming.