The ultra-high voltage（UHV） transmission tower real-time monitoring system is an important means to safeguard the security of the national grid

and it already become a critical problem in engineering applications to guarantee the data transmission reliability of the UHV transmission tower real-time monitoring system in the complex strong interference and weak wireless signal environment.On the basis of a remote data transmission system of wireless transmission channel

effect of environmental characteristics of UHV transmission tower on the wireless channel is analyed

a method based on the response confirm and adaptive dynamic retransmission mechanism is put forward.The method can adjust the packet size real-time automatically according to the status of wireless channel

utilize"quick-start"

"linear-growth"

and"regress-send"dynamic mechanism

and ensure the reliability and maximum efficiency of data transmission.Experimental results verify the high reliability and anti-interference compared with traditional method.