<p>The collaboration on managing forest resource involves two main actors such as State Forestry<br />Corporation (Perum Perhutani) and forest farmers groups. The objectives of this study are: (1) to explore<br />the conditions of factors that influence group dynamics of forest farmers group (FFG); (2) to explore the<br />condition of group dynamic of forest farmers group and to identify several factors influence the group<br />dynamic (3) to formulate a model of group dynamic of FFG. Several variables are included in this study<br />such as potency of individual farmers, effectiveness of empowerment process, role of facilitators,<br />effectiveness of forest farmers’ group leadershi, environmental supports and group dynamic of FFG. The<br />locations of the study are in three forest districts area of East Pekalongan, South Kedu and Gundih. The<br />preliminary study was carried out in January 2008, and field survey had been accomplished from July to<br />August 2008. Populations of the study are forest villagers around state forest areas in three selected<br />locations of 889.407 families. Method in this study is survey with questionnaire. Respondents of 408<br />farmers were selected through multistage cluster sampling with disproportional number of respondents<br />each location. The research data were processed with descriptive analysis and structural equation<br />modeling (SEM) with LISREL 8.72. The conclusions of the study are: (1) The condition of effectiveness of<br />forest farmers’ group leadership low (score 62); the condition of environmental support is low (score 62)<br />and the condition of facilitators’ role is also low(score 62); (2) Level of group dynamic of forest farmers’<br />group is low. Factors that influence significantly on the low of group dynamic are the low effectiveness of<br />forest farmers’ group leadership, unfavorable environmental supports and low role of facilitators; (3)<br />Model of effective group dynamic are influenced by effectiveness of forest farmers’ group leadership,<br />favorable environmental supports and role of facilitators. Whereas group dynamic consists of goal of the<br />group, group structure and group function.<br />Keywords: Group Dynamic, Forest Villagers, Forest Farmers Group, Collaborative Forest Management, Social Forestry<br /><br /></p>