The invention discloses an automatic drawing identification system and method. The system comprises: a drawing storage management module which is used for storing, reading and downloading a drawing; a drawing identification and automatic distribution module used for adding at least one unique code on each page of drawing, then splitting the drawing into single pictures according to pages, extracting characters of each picture, acquiring the unique code through the characters, binding the unique code with page numbers, then sequentially sorting the drawing according to the page number sequence, subsequently accessing the drawings of the corresponding page numbers through the unique codes, and according to the requirements of each link for different drawings, distributing the drawings required by each link to each link according to a page number mode, wherein each link can only check the distributed drawings according to the unique code; and a drawing identification application module which performs retrieval in the database table by utilizing the unique code, obtains a page number corresponding to the unique code, extracts a corresponding drawing according to the page number, and can perform viewing and downloading.