Portable electric grinder is equipped with high power and low noise motor, which can grind whole coffee beans quickly and efficiently. It has a visual transparent protective cover for easy viewing of the working conditions. The bottom has cooling holes and non slip feet. Small electric grinder is designed with a safety snap and a downward pressure type switch, the lid is aligned with the switch slot to start the machine. It has blades made of stainless steel, with strong grinding ability, the longer the grinding time, the finer the powder. Electric grinder with portable size, small and compact, does not take up space, stable use, suitable for home use and carry to outdoor use.