Abstract: This paper introduces the performance of a new C8 aromatics isomerization catalyst RIC-200 in laboratory and commercial unit, and compares with the results of SKI-400 catalyst under the industrial conditions. The results of the new catalyst indicate that the performance of RIC-200 under industrial operation conditions is in accordant with the results in laboratory test and better than SKI-400. The new catalyst possesses distinct characteristics，such as low deactivation rate,high ethylbenzene conversion and enhanced isomerization activity under even high pressure, low H2/HC, low hydrogen consumption, and stable C8 aromatics yield. The RIC-200 catalyst also demonstrates its excellent adaptability in varying industrial operation conditions.