The development of the social network and social support assessment method designed by Bizoń is concisely outlined. The final version of the measurement method is described and all its components are presented in the appendix. It consists of the Interview Questionnaire, including Social Support Inventory, the Map of Social Network, the List of Social Network, Table of the data coding and Questionnaire of Demographic Data. The main studies with this instrument are reviewed. They indicate that Bizoń's method is a helpful diagnostic tool and has some advantages in comparison with similar methods applied in the studies of social support.