To enable collective decision of the mutual positions of mobile objects without communicating with each other when a plurality of vehicles or human beings are moving.

A mobile object position recognition system comprises a plurality of mobile objects (1-1, 1-2,..., 1-n) each having a transmitting/receiving means and a display means, and a server (2) having moving schedule information writing area that can be accessed by the members via a network (3), and estimating and proposing the positions of the respective members based on the moving schedule information written in the area. The respective members can access to the server and can acquire the proposed estimated positions of the respective members.