Abstract: Based on the needs of embedded teaching practice,according to the design of serial communication in embedded technology practice teaching development direction,we put forward to the experimental design of UART serial communication to guide the embedded teaching reform practice.Simultaneousy,one gives the experimental teaching of UART based development projects.In combination with the experience of the experimental teaching and practice feaching,we ennance the culitvation of learning and innovotion abliity,and emphasize the learning in practice.This paper introduces the desigh technology of UART serial telecommunication applied in the embedded experiment teaching and teaching effect.It does not only have strong mainipuility,but als have good effect in promoting the practice teaching of embedded system.