The embodiment of the utility model discloses electric wire shaft tower early warning device and system, the device includes: the setting the overhead line position of wire pole department, the monitoring direction with the wire pole is parallel and towards the distance sensor on ground, with that distance sensor links to each other, be used for working as distance sensor's output signal surpasss when predetermineeing the scope, generates and export the treater of warning signal, the warning signal is including predetermineeing address information and reporting an emergency and asking for help or increased vigilance type information, with the wireless telecom equipment that alarm links to each other, wireless telecom equipment be used for with the warning signal sends the platform to human -computer interaction through wireless network. The embodiment of the utility model provides an among the electric wire shaft tower early warning device, when judging after distance value that distance sensor sent surpasss the scope of predetermineeing, export warning signal to human -computer interaction platform through wireless telecom equipment to the remote monitoring of wire pole state has been realized, and then climbing person's the action of pole -climbing by force can be prevented.