Teaching experimental device implemented by TCP/IP communication protocol based on Ethernet

The utility model relates to a teaching experiment device based upon the TCP/IP communication protocol of Ethernet, in particular to an experimental teaching device. The teaching experiment device solves the problem that words descriptions and diagrammatic drawings are adopted to explain the abstract and complicated network protocol in the present teaching, to cause the difficulties in understanding and acceptance of the students. The output end and input end of the Ethernet communication data of MCU central controlling circuit is connected with the data output end and input end of the Ethernet communication interface, the output end of the liquid crystal display data of the MCU central controlling circuit is connected with the data input end of the display unit, and the keyboard data output end of the keyboard is connected with the keyboard data input end of the MCU central controlling circuit. The teaching experiment device of the utility model has the advantages that the experimental content is plentiful,