A method for calculating intersection signal time distribution based no vehicle stop line passing time includes: sampling trajectory data of a vehicle passing by an intersection, calculating a time of the vehicle passing by a stop line, calculating a signal cycle time headway according to vehicle stop line passing times under adjacent two signal cycles, calculating red light duration of a corresponding intersection according to the signal cycle time headway to obtain a signal time distribution for the intersection. The method enables data mining to be effectively implanted under existing computer processing capacity, and more accurate and scientific recommendations are provided for people's smart trip and construction of a smart city.