The article is devoted to the study of communications in the cluster for forest waste processing as a factor and indicator of cooperation development. The article provides an overview of 4 groups of clusters with ecological, forestry, biotechnological and agricultural specialization; in total 21 clusters are studied. The cluster communication field is considered through a number of general scientific approaches. An algorithm for systematizing and replicating the experience of successful communication building in a cluster is proposed. The communication field of clusters using renewable natural resources is reviewed. From the perspective of an outside researcher, the conditions for effective and free interaction in the considered cases have not been created. The used communication practices are summarized. The target characteristics of the cluster communication model as an open network with an external and internal contour, with public involvement are formulated. The dependence of the functional content of communications on the stage of evolution in the cluster, on the ratio of the goals of innovation and efficiency is shown. The achievement of innovative cluster-specific effects is determined by the nature of relationships between participants and largely depends on the organization of the cluster’s communication field.