To provide a laundry management device dispensing with the multiple printing of the same slip and capable of shortening the printing time to attain the improvement in working efficiency and the reduction in cost.

According to the kind of laundry inputted from an input key 2, a finish date, washing way, and storage place are read from a data memory device 4. Commodities are grouped on the basis of the finish date, washing way and storage place, and the slip is printed out every group from a thermal printer 10.