The invention relates to a method for shielding identification in a visible light communication system. According to the method, a scheduler collects received power intensity information reported by auser and acquires historical average power of all effective optical links through calculation. The scheduler determines whether the link is shielded according to a difference between the average power and the current power. In addition, a large-radiation-angle lamp bank is introduced, so that the user can receive a signal of the lamp bank of an adjacent cell, and the scheduler determines whetherthe link is shielded by tracking the power on the link. Finally, the characteristics of a shielding object are deduced through integration of the power intensity changes of the signals of the lamp banks which are received by the user from the current cell and the adjacent cell, and the shielding object is mainly divided into a vertical type shielding object (an upright human body and the like) anda horizontal type shielding object (a horizontally-placed book, a human hand and the like). The method can provide the high shielding identification accuracy in a shielding scene and provide the reliable reference for communication performance analysis and compensation strategies in the shielding scenes with different characteristics.