An image file management method performed by a terminal of an image file management system, the method comprising the steps of: a.) receiving (step 401) a write instruction instructing the terminal to write an image file into the image file management system from a user of the terminal, the image file management system comprising the terminal and a plurality of edge cloud nodes, wherein the image file consists of a plurality of data blocks; b.) dividing (step 402) the image file into the plurality of data blocks; c.) generating (step 403), for each data block of the plurality of data blocks, an identification number of the data block based on the content of the data block and based on a preset identification number generation algorithm, wherein the identification number serves for uniquely identifying the data block in the image file management system, and converting the generated identification numbers according to a preset conversion algorithm into an identification number of the image file; d.) generating (step 403) an identification number topology of the image file based on the identification numbers of the plurality of data blocks and the identification number of the image file, wherein the identification number topology records a relationship between the identification numbers of the plurality of data blocks and the identification number of the image file, so that the identification number topology records the data blocks included in the image file; wherein the method further comprises the following steps after method step d.) • adding (step 406) description information of the image file to the identification number topology; • determining (step 404) at least one edge cloud node from the plurality of edge cloud nodes; and • writing (step 404) the plurality of data blocks of the image file into the determined at least one edge cloud node, so that each determined edge cloud node stores a part or all of the plurality of data blocks, and, after the writing the plurality of data blocks of the image file into the determined at least one edge cloud node: ∘ establishing (step 405), based on a storage status of each data block of the image file in the determined at least one edge cloud node, a storage correspondence between each data block of the image file and each edge cloud node that stores the corresponding data block of the image file, and ∘ storing (step 405) the storage correspondence in an edge cloud node of the image file management system; and • writing (step 406) the identification number topology to which the description information of the image file has been added to an edge cloud node of the image file management system. a.) receiving (step 401) a write instruction instructing the terminal to write an image file into the image file management system from a user of the terminal, the image file management system comprising the terminal and a plurality of edge cloud nodes, wherein the image file consists of a plurality of data blocks; b.) dividing (step 402) the image file into the plurality of data blocks; c.) generating (step 403), for each data block of the plurality of data blocks, an identification number of the data block based on the content of the data block and based on a preset identification number generation algorithm, wherein the identification number serves for uniquely identifying the data block in the image file management system, and converting the generated identification numbers according to a preset conversion algorithm into an identification number of the image file; d.) generating (step 403) an identification number topology of the image file based on the identification numbers of the plurality of data blocks and the identification number of the image file, wherein the identification number topology records a relationship between the identification numbers of the plurality of data blocks and the identification number of the image file, so that the identification number topology records the data blocks included in the image file; • adding (step 406) description information of the image file to the identification number topology; • determining (step 404) at least one edge cloud node from the plurality of edge cloud nodes; and • writing (step 404) the plurality of data blocks of the image file into the determined at least one edge cloud node, so that each determined edge cloud node stores a part or all of the plurality of data blocks, and, after the writing the plurality of data blocks of the image file into the determined at least one edge cloud node: ∘ establishing (step 405), based on a storage status of each data block of the image file in the determined at least one edge cloud node, a storage correspondence between each data block of the image file and each edge cloud node that stores the corresponding data block of the image file, and ∘ storing (step 405) the storage correspondence in an edge cloud node of the image file management system; and ∘ establishing (step 405), based on a storage status of each data block of the image file in the determined at least one edge cloud node, a storage correspondence between each data block of the image file and each edge cloud node that stores the corresponding data block of the image file, and ∘ storing (step 405) the storage correspondence in an edge cloud node of the image file management system; and • writing (step 406) the identification number topology to which the description information of the image file has been added to an edge cloud node of the image file management system.