A hanging closet includes closet body having a plurality of horizontal panels arranged at different elevations to divide the inside space of the closet body into multiple compartments and a plurality of horizontal splits on one or both of the two opposing sidewalls, and compartment support members each having a first support panel and a third support panel respectively insertable through two adjacent horizontal splits of the closet body into the inside of the associating horizontal panels to give a support and a flexible connection pocket connected between the first and third support panels that can be stuffed with a second support panel.