The invention discloses a bus arrival prediction method based on real-time traffic status information, belonging to an intelligent traffic technology. The bus arrival prediction method comprises the following steps of: preprocessing bus route data; matching bus GPS (global positioning system) points collected in real time onto a bus route according to the preprocessed bus route data; judging travelling behaviors of buses on the route; and carrying out bus arrival prediction based on the real-time traffic status information according to a judgment result. With the adoption of the bus arrival prediction method provided by the invention, on the basis of GPS rapid route matching of a sampling point, the complexity of matching a GPS positioning point and the route is lowered, the arrival distance processing speed is improved, and a simple and effective manner is provided for real-time matching of large-scale GPS data. With the adoption of a bus arrival prediction model based on the real-time traffic status information, dynamic bus prediction is carried out according to the traffic conditions changed in real time; and the bus arrival prediction method has better instantaneity and accuracy.