The invention discloses a method for controlling the movement of a cursor on a host screen, a gamepad and a virtual reality system. A host is connected with the gamepad. The method comprises the following steps that: obtaining the acceleration magnitude of a three-axis direction and a magnetic field strength value of the three-axis direction, wherein the acceleration magnitude of the three-axis direction is measured by an accelerometer in the gamepad at a current moment, and the magnetic field strength value of the three-axis direction is measured by a magnetometer in the gamepad; utilizing the acceleration magnitude of the three-axis direction and the magnetic field strength value of the three-axis direction to carry out calculation to obtain the movement gesture information of the gamepad at the current moment; according to the movement gesture information of the gamepad and sampling time interval information, carrying out calculation to obtain the position movement information of the cursor, wherein the position movement information of the cursor at least comprises the movement direction of the cursor, the movement rate of the cursor and the movement displacement of the cursor; and sending the position movement information of the cursor to the host to enable the host to control the movement of the cursor according to the position movement information of the cursor. According to one embodiment of the invention, the movement of the cursor is controlled.