The present study aims to develop the porous ceramic burner applicable to the Stirling engine, boilers and gas turbines using liquid fuels with the flammability in a large input load. As a liquid fuel, kerosene is supplied dropwise on the top surface of the porous ceramic plate and ignited on the bottom surface. The combustion behavior of the burner is examined by measuring the profiles of temperature and composition of combustion gas along the centerline in the chamber. The promotion effect of combustion is examined experimentally by installing a wire net at the chamber outlet. The boundary condition of the combustion changes substantially in the presence of the wire net. The behavior of NOx formation can be correlated by a function of the equilibrium NO concentration at a maximum temperature in the burner.