Based on specific environment of agricultural materials brand communication, combining the characteristics of information communication, trust formation and agricultural materials purchasing in rural areas, this paper summarizes three kinds of agricultural materials brand communication modes：market trust-orientation, internal trust-orientation and hybrid trust-orientation; defines the general mode of agricultural materials brand communication through cross case studies. Besides, the research tries to reveal the internal regularity of different trust-oriented brand communication, and provides guidance and direction for agricultural materials brand communication, brand management theory research and practical exploration.