To obtain a paper sheet processor whose the paper sheet housing processing efficiency is improved by discriminating, housing and processing a paper sheet forcedly housed in a forced housing mode in the device.

When it is judged that the identification of paper money is defective by an identifying part 17 on a forced money receiving route R in receiving the paper money, the acceptance of the paper money is rejected, the paper money is returned to a return port 15 and the acceptance of the paper money is repeatedly rejected even after operating the money receiving again. When it is recognized that the paper money is authentic according to judgment by a staff, the money receiving operation can be forcedly performed by the staff in a forced housing mode. The paper money forcedly housed in this forced housing mode is forcedly housed successively from a money reception port 13 through the identifying part 17 to a reject cassette C5 as shown by the forced money receiving route R. Even when it is judged that the identification of paper money is defective due to damage in circulation, the acceptance of the paper money which is identified and approved by the staff is permitted, the money receiving operation can be smoothly performed in the forced housing mode and especially when the paper money is authentic, the money receiving operation of all the paper money can be attained.