A clothes treating system including a first clothes treating apparatus including a circuitry module to control the first clothes treating apparatus, the circuitry module including a circuitry case, a connection circuit board mounted inside the circuitry case, and a control panel to cover the circuitry module. The connection circuit board is configured to be connectable by wire to a second clothes treating apparatus positioned at one side of the first clothes treating apparatus. The circuitry module is configured to control the first clothes treating apparatus and the second clothes treating apparatus when the second clothes treating apparatus is connected to the first clothes treating apparatus.