This study analyses the state and development of the system of sharing of knowledge, innovations and digitalisation of Bulgarian agriculture. First, the scope of the study and information sources are outlined. After that analysis is made of the state and evolution of the research and development activity in Bulgaria. Following is the analysis of the state and development of major agents in the system of sharing knowledge and innovations in agriculture and the relations - the system of agrarian research, the system of agrarian education, advises and consultations, and the system of application of agrarian innovations. Next, the state and evolution of the digitalisation in agriculture and rural regions are analysed. After that the results of an expect assessments on the state, efficiency and factors of development of the system of sharing of knowledge, innovations and digitalisation in agriculture are presented. Finally, conclusions of the study are made