The utility model relates to a technical field of prevention transmission line foreign matter wind is an electric wire blocking net hinders and hangs ware and electric wire blocking net device, its include a left side hinder hang a ware, the right side hinders and hangs a ware, a left side hinders and hangs a ware and include that a left side blocks thorn, left sleeve, left splint, left telescopic right side fixed mounting is on left splint, in a left side blockked that left sleeve is inserted on the right side of thorn, a left side blockked that the left side of thorn exposes in the telescopic outside in a left side, a left side blocks that the thorn inserts left telescopic part and left sleeve fixed connection, the right side hinders and hangs ware and a left side and hinder that to hang a ware be symmetrical structure, and the right side hinders a string ware and includes that the right side blocks and thorn, right sleeve, right splint pass through bolted connection between left splint and the right splint. The utility model has the advantages of reasonable and compact structure, convenient to use can act as go -between the restriction of the foreign matter that has flown in the lower part of tower pole with following through blockking the thorn, on the foreign matter having avoided having flown twines the power transmission line on tower pole upper portion, and then has avoided the foreign matter to twine the electrical short -circuit who leads to to transmission line's safety has been protected.