Micropipette is a commonly used tool for precise transfer and measurement of small volume liquids in biology education and laboratories. It usually consists of an adjustable piston, a plastic suction head, and a digital display screen, which can precisely control the sampling and discharge of liquids. In biology teaching, micro pipettes can assist students in various experimental operations, such as preparation of PCR reaction reagents, packaging of cell culture media, enzyme activity determination, etc. By using a micropipette, students can learn how to accurately manipulate small volumes of liquids, understand the basic skills of liquid handling, and cultivate a meticulous and precise experimental attitude.