Autophagy is essential for the maintenance of cellular homeostasis and its dysfunction has been linked to various diseases.Autophagy is a membrane driven process and tightly regulated by membrane-associated proteins.Here,we summarized membrane lipid compo-sition,and membrane-associated proteins relevant to autophagy from a spatiotemporal perspective.In par-ticular,we focused on three important membrane remodeling processes in autophagy,lipid transfer for phagophore elongation,membrane scission for phago-phore closure,and autophagosome-lysosome mem-brane fusion.We discussed the significance of the discoveries in this field and possible avenues to follow for future studies.Finally,we summarized the mem-brane-associated biochemical techniques and assays used to study membrane properties,with a discussion of their applications in autophagy.