Purpose:The aim of the study is to draw attention to the basics of functioning and changes taking place in the process of cooperation of farmers associated in groups of agricultural producers in Poland. Design/Methodology/Approach: The study uses the method of analyzing the literature on the subject, as well as the analysis of source data, including data from mass statistics, as well as data from the MARD and ARMA studies. Findings: The obtained results of statistical data indicate that from year to year more and more groups of producers, both agricultural and fruit and vegetables, cease to exist. This is a disturbing symptom indicating that these units do not fulfill the role that has been entrusted to them, namely development activities that would bring tangible financial benefits not only to themselves and to the constitution, but also to individual producers associated in these structures. The observations conducted on this market also allow to show the weaknesses and deficiencies of the financial management system of these enterprises. The observed effect of such ineffective actions is the gradual loss of motivation to function and cooperate in the group, which results in the gradual withdrawal of many individual producers and undertaking their independent production and trade activities. Practical Implications: The article contains information and guidelines for agricultural producers acting individually as well as cooperating in producer groups. The conducted analyzes of the obtained statistical material indicate a handicap of the functioning system of cooperation and indicate the need for appropriate reforms on the part of the state and representatives / authorities of producer groups. Originality/Value: The study contains significant findings regarding the variables influencing the direction and future fate of the functioning of agricultural producer groups in Poland.