In order to improve agricultural production efficiency, a method of intelligent agricultural internet of things to improve agricultural production is proposed from the perspective of intelligent production. Intelligent agriculture IoT adopted the three key technologies: sensor technology, power line carrier communication technology and computer network communication technology, the first two technologies are used to build a network node, and realize the remote monitoring. Computer network communication technology is used to transmit real-time data through network communication protocols in computer networks. Tests show that intelligent agricultural internet of things can record agricultural growth status in real time, remotely operate production equipment, accurately transmit real-time data, improve work efficiency and reduce production costs.