The rapid development and application of computer network technology make the experimental teaching based on network become possible. The network experimental teaching shares equipments through network, making up for the deficiency of traditional teaching.However, in the construction process of network experimental teaching platform, the data protocol conversion terminal connecting real laboratory equipments and remote user is critical.Taking embedded processor STM32 as the core, cooperating Ethernet communication module W5100, transplanted embedded operating system UCOSII, the remote experimental platform communication protocol conversion terminal was constructed. Tests show that the communication terminal operates stably, meets the experimental platform construction need and has a certain reference value.