Travel itinerary planning system capable of automatically planning a travel itinerary that satisfies the requirement of user

The present invention provides a travel itinerary planning system, which includes: a processing server for processing user travel data to obtain an itinerary planning result; and at least one user terminal connected with the processing server through a communication, and held by users with different user identification messages. The processing server has a scenic spot message storage part, a user data storage part, an arrival site acquisition part, a target scenic spot acquisition part, a scenic spot screening part, an itinerary planning generation part and a processing side communication part. The target scenic spot acquisition part acquires each scenic spot corresponding to the target location selected by the user as a target scenic spot. The scenic spot screening part can screen a scenic spot preferred by the user from each target scenic spot as a planned travel scenic spot. The itinerary planning generation part generates an itinerary planning result including multiple planned travel scenic spots arranged