The invention discloses a method for the binding interaction constraint of a human body mapping posture body and a virtual rotating body. The method includes the following steps of S1, establishing avirtual reality world with a quaternion structure as the four-dimensional space; S2, establishing the human body mapping posture body of a real human body in a virtual environment; S3, representing the rotating axis of the virtual rotating body through a three-dimensional vector, and representing the rotating angle of the virtual rotating body through an angle vector; S4, setting the rotating axisas the A point and the hand as the B point, and setting the virtual rotating body to be kept on the straight line from A to B; S5, judging whether the hand keeps holding the virtual rotating body ornot, and if yes, always making the virtual rotating body move in the direction of the AB straight line to form the binding interaction constraint. Thus, the binding interaction constraint method is easy to implement, high in interaction precision, high in stability and higher in experience feeling in a virtual scene, more conforms to the virtual environment immersion characteristic, and solves thebinding interaction constraint problem of the human body mapping posture body and the virtual rotating body.