PURPOSE: To readily obtain embroidery sewing of novel voluntary design with utilizing embroidery data of plural manufactured designs by performing embroidery with freely adding changes of previously inputted embroidery data and embroidery parameter with specific method.

CONSTITUTION: At first, embroidery data performing control of every parts and command code commanding change of embroidery parameter, etc., controlling embroidery sewing action corresponding to said data are stored in each command storing means with each commanding step. Next, in performing embroidery action, command code is read out with each commanding step by command reading out means and pattern selecting data is outputted from outputting means of design selection according to content of the read out command code. Then, stored position of embroidery data and embroidery parameter is calculated by said design selecting data using storing and controlling means of designed data, thus necessary embroidery data and embroidery parameter are read out in turn from the design data storing means. Finally, embroidery sewing action is performed by performing means of embroidery sewing action according to said embroidery data.