One technician of Ceramic Manufacturing, having worked in particles operation for 25 years and be diagnosed as pneumoconiosis patient, apply for Labor Insurance compensation. The survey focused on understanding and controlling risk factors in the work environment, the respirable particulate concentrations are between 0.145~0.362mg/m³, and all below the regulation of airborne concentrations. But the business unit ignored the airborne measurement and physical examination, there is no record particulate concentrations and labor physical examination results. So we suggest that the ceramic manufacturing to take advancements in engineering control, administration management and personal protection, to prevent possible occurrence of occupational disease.