A method and an apparatus for file transmission are provided. The method may include receiving a file sending request initiated by a source user for a preset file; sending an approval message for the file sending request to an approval user corresponding to the source user when the source user does not have a transmission privilege for the preset file; and setting the preset file as an obtainable state for a target user corresponding to the file sending request in response to the approval message being approved by the approval user. The technical solutions of the present disclosure can prevent an approval operation of a file from interrupting a communication process between users, help to simplify user operations, and improve the smoothness of the communication process.