Large file transmission method and apparatus

The invention discloses a large file transmission method and apparatus. The method comprises the following steps: step 1, a server stores all fragment files of a target file, and sorting information and size information of the fragment files in the target file, and generates synthesis information of the target file according to the sorting information, the size information and storage addresses ofthe fragment files in a process of receiving the fragment files or after all fragment files of the target file are stored; and step 2, after receiving a downloading request of the target file from aclient, the server provides data contents of the fragment files for the client according to the sequence of the fragment files in the target file according to the synthesis information of the target file. By adoption of the large file transmission method and apparatus disclosed by the invention, a file synthesis step consuming the processing amount is omitted, the processing efficiency of the server is improved, and meanwh