The invention relates to the technical field of compiling devices for a note, in particular to an intelligent compiling engine for the note of electric power and an application method of the intelligent compiling engine for the note of the electric power. The intelligent compiling engine for the note comprises a note graphics and text information extracting module, a digital information extracting module, a text information extracting module, a note data processing and comparing module, a client application module and a business database. The intelligent compiling engine has the advantages of being reasonable and compact in structure, convenient to use, and capable of reading invoice information in an intelligent manner, and recognizing the information such as an added-value tax note number, an added-value tax code, an invoice date, a sum, the amount of tax to be paid, a tax rate, a purchase order number and a supplier name. The automatic type-in of contents of a paper note, the batch invoice prefabrication and the batch invoice auditing work are achieved. The intelligent compiling engine solves the problems in a traditional note processing procedure that the manual type-in efficiency is low, the labor intensity is high and the processing procedure is prone to errors. The intelligent compiling engine has the advantages of being safe, effort saving, simple, convenient and efficient.