To carry out services such as a score management and services of giving an advice to an individual player in response to a request for the advice during playing by storing information about a golf course into a touch panel portable terminal in behalf of a caddie.

A communication system for communication between a touch panel portable terminal 1 which a player rents at the golf course and a data processing part 2 through a communication network 3 manages the scores of players. In the case of a competition etc. of a plurality of groups, the scores of other groups and a rank in the competition etc. can be known any time on the touch panel portable terminal 1 by using the data processing part 2. The touch panel portable terminal 1 stores a map of a reduced scale of each hole at the golf course so that an individual player can freely retrieve yards by reflecting the position of his/her ball on the portable terminal 1 by utilizing positioning data supplied by a positioning part 11 carried individually, marking the position with a dedicated pen 23 and tracing to a place desired to hit. In addition, cameras 4 are installed on each hole tee ground and green to watch video during playing any time on the portable terminal 1 by using the data processing part 2 through the communication terminal 3.