Abstract: Aiming at the demand of function reconfigurable of display terminal for radar system, a method of online configuration and a method of online selection of data sources for Ethernet switch are proposed based on SNMP protocol. This method can achieve automatic reconstruction of display terminal, effectively decrease the complexity of function adjustment for display terminal, and improved the system flexibility as well as reliability significantly. By add the method of natural human-computer interactiontools, intelligent tools, shape and layout base on human engineering etc. , the display terminal achieved intelligent human-computer interaction. This can highly improve the human-computer interaction efficiency of display terminal. Driven by big data, achieve intelligent discrimination and information push with assistant decision system, the display terminal can effectively decrease the complexity the decision for the operator, and improved accuracy of the decision.