The invention discloses a commuting private car dynamic car-sharing recommendation method. The commuting private car dynamic car-sharing recommendation method comprises steps that license plates are input, and data is automatically identified, and is preprocessed to generate a car trajectory set; based on the urban vehicle trajectory set, by combining with the high repeatability and the periodicity of the time-space rules of the commuting private cars, a workday commuting private car identification algorithm is designed; by combining with the home-work addresses, the commuting time windows, and the workday dynamic influence factors (weather, accidents, and traffic)of the commuting private cars, the key characteristics affecting the car-sharing of the commuting private cars are extracted; based on the space-time characteristics of the commuting cars, the commuting cars having the similar commuting time-space rules are matched with each other, and by combining with dynamic influence factors affecting car-sharing wills of drivers, the dynamic factors are effectively combined with car-sharing demands of users in a time-space dimension, and therefore the dynamic car-sharing matching based on the wills of the users is realized, a long-term stable car-sharing mechanism is provided for the commuting private cars, and then the number of the private cars in the morning and evening rush hours is obviously reduced.