The invention relates to a taximeter pricing method of a taxi, and discloses a taxi carpool pricing system, a pricing method and a booking method of the taxi carpool pricing system. The taxi carpool pricing system comprises a taximeter, and further comprises a navigating instrument which is provided with a route planning module, a trail recording module and a route modifying module, the taximeter is connected with the navigating instrument in a bidirectional mode, and the taximeter is a carpool taximeter. The taxi carpool pricing system further discloses different rewarding methods and taxi booking methods. Due to the fact that pricing can be respectively conducted for groups of carpool passengers, meanwhile relevant rewards can be given to the carpool passengers, the passengers are encouraged to ride together, resource waste is reduced and traffic block is relieved to a certain extent, the passengers and drivers can be mutually benefited, information uploaded by the taxi drivers such as empty, about to get off and available for carpool is received by the passengers through a remote service module, passengers can book and battle for an order and plan a travel, the passengers in the same route can further ride together in vehicle rush hours of on and off duty, phenomena of waiting for vehicles for overlong time can be avoided, and outgoing is convenient.