Disclosed are an automatic creating method of a group application or a couple application which comprises (1) downloading and installing a group application or a couple application creating application by an administrator; (2) creating the group application or the couple application from the application creating application by the administrator; (3) inputting an identification means of a client or a counterparty relating to the group application or the couple application by the administrator; and (4) transmitting the group application or the couple application to the client or the counterparty. Thus, an Internet space in which only a small number of people or two person may communicate with each other and share information may be created simply and easily.