The invention provides a method for realizing the virtual reality all-directional action based on an action capturing system. According to the method, a sensor node set by the action capturing system is used for obtaining original information of the actions of the human body, a fusion algorithm is utilized for obtaining respective human body joint dynamic parameters, and then a multi-source information fusion technology is utilized for fusing and correcting the received human body joint dynamic parameters and calculating control parameters of an action protecting device; the action protecting device is driven to drive the action capturing system so as to help to safely control the human body to do the actions of rotating, standing upright, bending forward, horizontal moving, diving and the like. When the method is used, the safety of the actions of the human body is ensured, constraint on the actions of the human body is smaller, the 360-degree ground actions can be achieved, and the aerial actions of soaring, diving, bending forward and the like can be achieved; as selectable VR glasses (oculus rift) or Kinect accessories of the Microsoft are combined, a game player can safely control the ground actions and the aerial actions of the virtual world in a 360-degree all-directional mode in reality, real simulation of reality reaction can be achieved in the virtual world, and the effect is more verisimilitude.