Moving beds are widely used in many scientific fields due to their advantages, but their operation is affected by the phenomena of cavity and pinning, which should be avoided. In this article, a perforated dividing wall was located in a two-dimensional rectangular moving bed with gas cross-flow and the effect of the wall on some properties of the moving bed was investigated. Experimental results show that the location of the perforated dividing wall can improve the upper limit of the gas velocity of the moving bed since it prohibits the existence of a cavity and pinning. The dividing wall separates the apparatus into two channels. A cavity forms in the channel close to the upstream face while pinning occurs in the other channel. In comparison to a moving bed without a dividing wall, the cavity size and pinning width in a moving bed with a dividing wall are smaller at the same gas velocity.