The invention provides an adaptive method and device for torque transfer characteristics of a dual clutch transmission. The method includes the steps: determining a torque-position T2P curve accordingto the disk temperature of a clutch in a micro-friction state in the dual clutch transmission; calculating the average torque value of the clutch and the torque difference between the clutch and an engine; obtaining a first position value corresponding to the average torque value from the torque-position T2P curve, and calculating a second position value corresponding to the average torque valueaccording to the torque difference; adjusting a position value of the first target torque point contained in a first target torque region to which the average torque value belongs to a second positionvalue to obtain a first torque-position T2P curve; and performing monotonicity check updating on the first torque-position T2P curve. Based on the method disclosed by the present invention, the torque-position T2P curve is automatically updated under the condition of continuous wear of the clutch, and the torque transfer characteristics of the dual clutch transmission are adaptively adjusted, thereby improving the control accuracy of the vehicle to the dual clutch transmission.