This invention discloses a method of generating lattice data to solve the problem of low efficiency. It includes large edition parameter and small edition file information confirmation; large edition information generated and sent to grid image processor; all the small edition file was generated to large edition lattice data according to the file information. This invention also includes a device for generating large edition lattice data. The advantages are as follows; large edition PS or PDF files are not necessarily generated; small edition lattice are not to be reassembled so that the processing efficiency was increased and disk resource was saved.