Abstract: Agriculture is one of the most important application fields of the IOT(internet of things)technology, and it is also the most urgent, difficult and integrated features of the Internet of things technology.In this paper, the progress of technology development, system standard and industry application in the field of agricultural Internet of things is introduced in the United States, Japan, Holland and other developed countries.The American farm became the leader of the agricultural application of networking technology, basically formed the whole network of precision agriculture, and the variable spraying fertilizer, weed automatic identification technology, large?scale sprinkling machine precision control technology have begun to scale, industrialization application.Japan is characterized by portable intelligent machines, and develops an appropriate scale farms precision agriculture.Holland built a greenhouse agriculture efficient production system.Korea and Israel through the construction of agricultural science and technology innovation service system, greatly promote the development of agricultural technology, promotion and application.In the field of agricultural IOT technology, the application of sensor, RFID, information transmission, information processing technology and the existing problems are analyzed.Sensor is the basis of agricultural IOT, the development of new type for low power plant information and soil nutrient information sensor is an urgent need to solve the problem.In the modern agriculture, a large number of sensor nodes form the different function of monitoring network, through a variety of sensors collecting information, which can help farmers to find problems in time, and accurately capture the position of the problem.As a result, agriculture gradually become the new mode from human centered to mechanical steering center for information technology and software mode of production of agricultural production mode.RFID technology, which has important applications in the field of agricultural products circulation, intelligent farming, and fine crop production, has the problem of safety mechanism, industrial standard and application cost.In information transmission, wireless sensor network technology is widely used, and its existing storage algorithm, different source data fusion is the problem that is needed to be resolved at this stage.In information transmission, wireless sensor network technology is widely used, and its existing storage algorithm and different source data fusion is the problem that is needed to be resolved at this stage.Information processing can use cloud computing technology and intelligent information processing technology, but also has the problem of security and standards.At the same time, the internet of things in the agricultural resources and environment monitoring, breeding, Daejeon precise job, facilities horticulture intelligent control, livestock and poultry breeding, quality and safety traceability and other key aspects of the application of agricultural fields were analyzed.Monitoring method basically has two kinds, one kind is through the low level sensor and wireless sensor network(WSN), another kind is with 3G technology.Commercialized breeding large data information platform construction and breeding equipment research and development will be focus on the future development.Using information technology to the field production process is the key link of crops cultivation management, will enhance the management level of agricultural production.The development of Internet technology has realized the planting of intelligent monitoring, especially in the most widely used in the production of horticultural facilities.Agricultural IOT technology in aquaculture, pigs, dairy cattle breeding industry such as the use of relatively mature.It proposed that the key of the development of the future technology of agricultural IOT is the information perception and recognition technology, the self?organizing network deployment and information transmission technology, the information integration and cloud computing technology as well as the four aspects of safety supervision and service quality assurance technology.In the field of information awareness and identification technology, we should focus on the development of crop life and environmental information, aquaculture environment, livestock and poultry breeding environment, agricultural resources and ecological environment information sensing technology and equipment.In the self?organization network deployment and information transmission technology field, we should focus on the development of agriculture IOT full dimensions of space deployment and topological structure technology and low consume self?organizing network technology.In the field of information fusion and cloud computing, we should focus on the development of the agricultural IOT massive multi?source information fusion technology and cloud computing and cloud services for specific areas of agricultural technology.In the next five to ten years, we should further strengthen the research and development of agricultural IOT technology standards and core technologies, and focus on the key technologies such as agricultural awareness data standard, agricultural special sensors, agricultural information processing and other key technologies, and strengthen the integration of agricultural technology integration and product testing.At the same time, we should further optimize and improve the policy environment, and give preferential tax relief to guide social networking companies and capital into the agricultural sector.