A numerical control system which includes a control processor (101), a tape (102a) recording a main numerical control program, a tape (102b) recording user's macro, a memory (203) for storing a numerical control program read from the tape (102a) a user's macro register memory (104) for storing a number of user's macros read from the tape (102b), a shape data memory (105) storing the display data the shape pattern responsive to the respective macros, a keyboard (106) which inputs a numeric value corresponding to the variable, and a graphic display unit (108). Thus, the display data of predetermined shape pattern is read from the memory (105) by a user's macro command, and is displayed on the display unit (108). Variable are input according to the display. An executable user's macro is completed by the editing function of the processor (101) with the user's macro and the variable, and numerical control processing can be performed on the basis of the completed user's macro in this numerical control method. Accordingly, this method may register only one subprogram for a given shape, and does not necessitate altering the main program even if the size is different. In this system, programming is very simple, and can be adapted for the end user's various needs and can also accurately control numerical values.