The main application of intelligent robot in the field of agriculture automation is discussed. The picking robot, grafting robot, cultivating robot, weeding robot, spraying pesticides robot, planting robots, timber cleaning robot, feeding robots, egg inspection and grading robot are presented. The Perception and obstacle avoidance techniques,machine vision technology,information fusion technology and agricultural expert system are the main applications in agriculture intelligent robot technology. The intelligent problem of agricultural robots,high cost and the impact of environmental diversification need to be further studied and solved.