To provide an information processing system for a taxi for transmitting/receiving various information to/from a vehicle distribution center via digital radio for reducing production cost while stabilizing transmission/receipt of information and improving efficiency of business and a service.

A taxi meter is provided with a communication means 4 transmitting/receiving various information including a plurality of pieces of additional information to/from a vehicle distribution center S via digital radio, an input means 2 including a plurality of tariff setting switches 21, a fare computing means 31 computing a fare, and a display means 1 having a meter relevant information display part 10 displaying meter relevant information specific to a taxi meter. The taxi meter A is provided with an information selection means 33 selecting additional information, which is requested to be delivered from the vehicle distribution center S, from a plurality of pieces of additional information, and an additional information display part 13 is installed in the display means 1 for displaying the additional information delivered from the vehicle distribution center S.