Abstract: Paste filling technology has gradually become an important development direction of filling method because of its advantages in safety，environment protection and high efficiency and other aspects，and the paste conveying pipeline is the key link in the system.The phenomenon of wall slip exist in the process of paste flow，but its mechanism is not clear，and the research for behavior of paste slip flow is not conducted deeply both at home and abroad.It is of great practical significance to explore its law for the sake of reducing resistance of paste pipeline transportation efficiently and energy consumption.The research status of wall slip in slurry pipeline is introduced，and the influence factors of slip effect in pipeline are discussed.On this basis，the trend of research on wall slip of paste is put forward.

Key words: Wall slip, Mechanism of wall slip, Slip layer, Pipeline transportation, Paste