The invention relates to the technical field of analysis and display processing of electronic ledgers, in particular to an extraction method of a text decleration module. The method comprises the following steps of: configuring a declaration form at an operation and maintenance end by an operation and maintenance worker, setting declaration form templates corresponding to different tax types and different declaration periods, setting a calculation formula in a declaration form cell, and marking a write-in mark on the cell in which a business data result needs to be written; after the service end selects the declaration tax type and the belonging period, extracting the service data and returning the service data to the view interface for the user to confirm or manually adjust, and attachinga unique mark to each service data extraction result; and after the user confirms, extracting a template analysis file from the declaration form template library according to the tax category and thebelonging period, and correspondingly filling data according to the mark. Analysis of various application form templates is met. Extra development work does not need to be carried out on inter-tablecalculation logic, the influence of updating and upgrading of tax application policies is avoided, the operation process is simple, maintenance is convenient, and the method can be used without training.