The invention discloses a dual-arm supported direct-current thawing access combination hardware fitting. The hardware fitting comprises a tubular bus bar, wherein the tubular bus bar is fixed with a static contact; leading wires for leading a high current on the tubular bus bar out are arranged on the two sides of the tubular bus bar; the tubular bus bar is connected with a post insulator by a fixing hardware fitting; the post insulator and an upper connecting plate on a supporting bracket are fixed together by a bolt; the supporting bracket is connected with an equipment bracket by a lower base plate; a counter weight piece is arranged in a right inner wall of the tubular bus bar; external end-capping balls are arranged at the two ends of the tubular bus bar; and a shielding ring is fixed with the upper connecting plate of the supporting bracket by a connecting plate on an inside tube wall by using a bolt. The hardware fitting has the characteristics of large suitable current range, improvement on the weight of the overall combination hardware fitting, prevention of torsion and distortion of the hardware fitting when in windage yaw, increment on the stability of an overall hardware fitting, great improvement on the rigidity and the strength sufficient to meet the impact of an external unbalanced force, good protection effect on the stability of an overall combination alloy hardware fitting system and the like.