The invention relates to a wireless optical communication system which solves a problem that as noise interference always appears after wireless communication is accessed to a remote network, a normal wireless communication progress is influenced. The wireless optical communication system comprises an initial device (1), a main wireless optical network (2) and a remote wireless optical network (5), wherein the initial device (1) is accessed to the main wireless optical network (2). The wireless optical communication system is characterized in that a middle transmission device (3) is arranged between the main wireless optical network (2) and the remote wireless optical network (5), and is connected with the main wireless optical network (2) and the remote wireless optical network (5) respectively; and a noise analysis module (4) is arranged in the middle transmission device (3). With the adoption of the middle transmission device accessed to the remote wireless optical network and the noise analysis module, the noise interference can be informed to an output device in time, and then is processed; and an initial transmission device accessed to the main wireless optical network has a noise-proof effect.