Abstract
The sociometry analysis applying fuzzy node fuzzy graph shows the social structure. But, a fuzzy node fuzzy graph is usually complicated, so, we proposed a method to transform a fuzzy node fuzzy graph to a crisp node fuzzy graph by using T-norm. We shall explain a fuzzy node fuzzy graph, its analysis method and its effective application to a fuzzy sociometry analysis by using new T-norm "Quesi-Logical product".