This paper first briefly describes the fluid dispensing technology, which has the characteristics of high precision, high consistency and miniaturization, and divides the dispensing technology into contact dispensing and non-contact dispensing, and then mainly expounds the basic principle, classification and development of contact dispensing in various fields. Contact dispensing is mainly divided into pneumatic dispensing, screw pump dispensing, and cylinder dispensing. Contact dispensing is mainly divided into pneumatic dispensing, screw pump dispensing, and cylinder dispensing, and the relevant characteristics and research status of the three are analyzed. This paper introduces This paper introduces the recent research results of the author’s research group in the field of cylinder glue supply, as well as the shortcomings of the current cylinder glue supply.