Abstract: The present invention relates to a method of producing net structures by connecting annular net elements with connectors. The present method includes a net strip forming process in which a net strip is formed with a plurality of annular sections for net elements arranged in a predetermined pattern and joined with the net strip through joints on the outer edges of the annular sections, a connecting process in which all adjacent annular sections of the net strip are connected to each other with a connector in a position where no joint is provided, and a separation process in which the joints are cut off to separate each annular section from the net strip for formation of the net elements. According to the invention, a net strip is punched to have a plurality of annular sections and with the annular sections kept joined with the strip, the adjacent annular sections are connected to each other with a connector, and then the annular sections are cut off from the strip to form individual net elements.