People are entering the Internet of things with the development of information technology.The security of Internet of things（IoT） is an important determinant of whether IoT can be sustainable and healthy.The current security situation of IoT and main security risks of end pipe cloud were analyzed fi rstly.Then

the security solution architecture by the end pipe cloud linkage was stated

which to solve the equipment and application of security access

authentication

secure channel

key management and data protection

solve the detection and reinforcement of the equipment and a plication

solve the alarm and disposal of abnormal or malicious behavior

and through the operation of closed-loop system guarantee security for IoT.