The present invention discloses a technical symbol editing device and method based on a parametrized template and capable of realizing mixed editing and typesetting with words. The method comprises the following steps: establishing a technical symbol parametrized template library module 11, a template library initialization module 12, a new symbol example module 13, an interface modification symbol example parameter module 14, a non-interface modification symbol example parameter module 15 and a symbol example displaying/printing module 16; through analysis on various technical symbols used in CAPP (Computer Aided Process Planning), classifying the technical symbols; compiling a parametrized template for each symbol; establishing a technical symbol parametrized template library; carrying out new establishing, modifying and displaying/printing on the technical symbols according to the technical symbol parametrized template library. According to the present invention, the problem that the technical symbols are templatized is solved; on the basis, the problem that the technical symbols in technical files are mixed with texts for compiling, displaying/printing can be solved, so that the technical symbols can be equally treated with common words; and as the workload in compiling, modifying and maintaining the technical symbols based on the template is little, the display effect is good.