Virtual hand control method and device

The invention provides a virtual hand control method and device. The method comprises the following steps: receiving image data sent after hand movement collected by a posture capturing device; extracting hand posture data and graspable target object from the image data; obtaining the hand posture data and the graspable target object from the image data; updating a preset hand bounding box according to the hand posture data, and constructing an object bounding box according to the target object identification data; if it is determined that the collision between the hand and the target object satisfies the preset collision detection condition based on the hand bounding box and the object bounding box, judging whether the hand posture determined based on the hand posture data satisfies the preset hand posture condition; if the hand posture satisfies the preset hand posture condition, fixedly connecting the center of the virtual hand created based on the hand posture data in the virtual reality scene and the cen