Bulgaria is known with deep agricultural traditions. The importance of understanding the model of agricultural farms in the country is of a great importance for sustainable sector. The existing models are characterized with a great variety by all indicators connected with organizational forms, management, productive structures, utilized land, access to funds, environmental orientations etc. The reviewed models are based on external and internal functional environment. The main aim of the study is to reveal the changes in agriculture models of farming in Bulgaria. The set up tasks are: 1) literature review of the main agricultural models. In this part are summarized agricultural models with their characteristics; 2) evidence of Bulgaria of existence of main agricultural models and their role for the sector; 3) analysis of statistical data of distribution of different agricultural models; 4) main findings and conclusions.