The invention relates to a high conductivity annealed aluminum wire and a manufacturing method thereof, in particular to a conductor material fabrication technique used for overhead conductors of a transmission line. The components of the annealed aluminum wire includes Si having the weight percent being less than or equal to 0.08%; Fe having weight percent being less than or equal to 0.02%; Cu having weight percent being less than or equal to 0.005%; B having weight percent of 0.07-0.15%; and Al having the rest weight percent; the annealed aluminum wire can be used for reducing the consumption of the transmission line, thereby effectively lowering the operating cost.