The invention discloses a novel dual-freedom straight annular worm transmitter and relative production. The invention comprises a worm rod (1), a worm (2), a blade base (3), a worm roller (4), a worm axle (5), a worm axle (6), a blade base axle (7), and a straight blade (8). The straight blade (8) processes dual-freedom motion to form the screw face of annular worm rod (1), to obtain the dual-freedom straight annular worm rod. And the worm roller (4) has same face with the screw face of annular worm, to process the tooth of worm (2). The annular worm rod (1) and the worm (2) form the dual-freedom straight annular worm rod transmission, with the advantages of straight annular worm, better contact area and contact quality.