The performance of capsule polishing machine is quite superior. The whole machine is made of stainless steel; the brushes inside the sieve cylinder are connected by a quick snap-fit connection way, which is easy to disassemble and clean; the motor speed is controlled by the frequency converter, which can withstand a large starting torque, and runs smoothly and reliably; the base is equipped with a rotatable Roller for flexible movement; simple operation, reliable work, high production efficiency, high polishing cleanliness, and reject waste products.