To provide a decision system for provisional price of used goods capable of deciding sales prices of used goods by anyone easily and suitably without pre-preparing price information on every goods.

The system comprises a storage means to store information on provisional price of goods which is set according to contents of predetermined characteristics items relating to used goods, an input means to input contents of the items relating to a single used goods, an obtaining means to obtain provisional prices of goods matching with the contents of the items inputted by the input means from the storage means and an output means to output the prices obtained by the obtaining means by a predetermined output means.