Transcription factor EB(TFEB)is a member of the microphthalmia associated transcription factor family.It plays an important role in lipid metabolism and other biological processes by regulating the expression of auto-phagy and lysosomal related genes.The activity and cellular localization of TFEB can be regulated by posttranslational modifications of proteins.This paper discusses the mechanism of autophagy regulation by TFEB posttranslational modifica-tion,aiming to help understand the pathogenesis of related diseases caused by abnormal autophagy,and provides new ideas and feasible intervention targets for the prevention and treatment of corresponding diseases.