for measuring the social capital index in the application server 130 to each member of the first human network when the valuation service is selected by members measuring the social capital index s 130 wherein the individual item index and the social capital index of the first human network are stored in the social network database after measuring the individual item index and the social capital index of the first human network by using each valuation score in the application server 130 when each valuation score is inputted by the valuation item fill out applet 131 renewing the social capital index s 140 wherein the revaluation service is provided so that a member can correct the social capital index of the first human connection the valuation item applet 131 is provided when the revaluation service is selected the individual item index and the social capital index of the first human network are renewed and stored to the human network database 123 of the social network database 120 after measuring the individual item index and the social capital index of the first human network by using each valuation score checked by the valuation item applet 131 and measuring the whole social capital index s 150 wherein the whole social capital index toward all or partial social connection networks is measured by using the individual item index and the social capital index stored in the human network information database 123 of the social network database 120 more specifically explaining a member connects to a homepage throughout the client computer 110 and wire and wireless internet network is given with member id and stores personal information including id name s email address es telephone number s job s work area s address es nation and school s to the member information database 121.