1. A modeling system based on a logical relation, comprising: one or more processors programmed to perform the following functions: dividing integrated operation tasks into different classes comprising adding operation objects, deleting operation objects and modifying operation objects, acquiring, command information of the operation tasks and performing task splitting on said command information, putting said operation objects on grid nodes by adopting rectangular lattice description, wiring according to fewest crosses and shortest paths and correcting associated ones of the operation objects on wiring paths, correspondingly performing model addition, deletion and modification actions according to the said putting of said operation objects on grid nodes by adopting rectangular lattice description and said wiring according to fewest crosses and shortest paths and correcting said associated ones of the operation objects on wiring paths, when one or more spatial point operation objects are newly added, automatically shifting the associated spatial points of adjacent areas, calculating a current graph increment according to said putting of said operation objects on grid nodes by adopting rectangular lattice description and said wiring according to fewest crosses and shortest paths and correcting said associated ones of the operation objects on wiring paths, and calculating a current model increment according to the current graph increment acquired by said calculating of a current graph increment; and a memory including a relational database for storing a grid model after the model increment corresponding to the graph increment is corrected, the current graph increment comprising a grid primitive object increment and a topological relation change increment.