A sheet processing system includes an arrangement device, a sheet processing apparatus, and a server with a communication line to count and sort sheets. The arrangement device includes an input unit configured to input attribute information of the sheets, a reading apparatus configured to, sort the sheets to a first sheet group and a second sheet group by respective first and second identification cards, and a unified identification card corresponding to a unified sheet group. A transmitting unit processes the input attribute information and the identification information, transmits the processed arrangement processing information to the server via the communication line. A sorter conveys and sorts the sheet groups and identification cards. A second reading apparatus reads the identification information, and a CPU checks the information from the server.