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In order to realize the purpose of remote management and control by providing network interface for embedded devices, a design scheme of embedded web server based on MSP430 single chip microcomputer and Ethernet controller CS8900A is proposed. With MSP430 single chip microcomputer as the core and Ethernet controller, users can access the single chip microcomputer system at any time through the Internet, and get the external temperature measured by DS18B20. Meanwhile, the platform can simply expand other functions. This design has the characteristics of simple hardware connection, good expansibility and low cost. It can be widely used in remote data collection, remote monitoring and control, intelligent home and other fields, with high practical and research value.