The technological feasibility of applying electrophoretic deposition (EPD) to ordered mesoporous silicate (MPS) powder has been studied. The EPD technique was investigated for the fabrication of an MPS thick film using MPS synthesized by the spray-drying method. It was found that the MPS powder deposition rate was low with an alcohol EPD bath and very high with an acetone EPD bath. The deposition amount could be easily controlled by changing the MPS powder concentration, the applied dc voltage, and the deposition time. An MPS particle/acetone suspension in which the particles were negatively charged showed the highest deposition rate among the tested organic solvents. MPS powder was deposited by EPD at 50 V for 10 min onto a tubular stainless steel substrate, and a uniform coating approximately 250 mu m in thickness was obtained. After heat treatment at 573 K, the MPS powder could be fixed on the substrate without the addition of binders. The obtained MPS thick film had the same porous structure and nitrogen and water vapor adsorption properties as the parent MPS powder.