The invention discloses an automatic-control book lifting mechanism for self-service book distributing equipment. The automatic-control book lifting mechanism is characterized in that a supporting plate with a book library is mounted on a support frame via vertical jacking assemblies, feedback control units of the jacking assemblies are connected with a book location sensor of the self-service book distributing equipment by signals, the book library can be compressed from bottom to top according to book distributing actions, books on the top of the book library is in contact with a distributing mechanism in a clinging manner, an adaptive book distributing device starts to distribute the books on the top of the book library, the books on a top layer of the book library are in to-be-distributed states, the jacking assemblies can be braked by signal control units, and the book library can be lifted by the thickness of a book by the jacking assemblies under the control of the signal control units of the jacking assemblies after each book is completely distributed. The automatic-control book lifting mechanism has the advantages that the book library can be lifted by the jacking assemblies with continuous upward actions, lifting of the book library is effectively combined with distributing procedures, accordingly, the books can be automatically lifted and distributed, and the book distributing efficiency and accuracy can be effectively improved.