The invention disclose an automatic sequencing method based on an accounting document arrangement machine. The method includes the steps that 1, a to-be-identified accounting document number intervaland the action delay time of an automatic paper stop rod are set; 2, the accounting document arrangement machine is restored; 3, accounting documents are conveyed; 4, the accounting documents are sorted; 5, the accounting documents of which the numbers are already identified are clamped; 6, the accounting documents of which the numbers are not identified are recycled; 7, electric clamping jaws finish clamping all the accounting documents of which the numbers are to be identified, and conveying of the accounting documents is stopped; 8, a storage box is emptied; 9, automatic sequencing and stapling of the accounting documents of which the numbers are already identified are performed; and 10, automatic sequencing and stapling of all the accounting documents are finished. By means of the automatic sequencing method based on the accounting document arrangement machine, the to-be-identified number interval is set, the accounting documents which the set to-be-identified number interval corresponds to are clamped, the accounting documents of which the numbers are not in the interval are recycled, the numbers of the accounting documents which are clamped on the corresponding electric clamping jaws are memorized through auxiliary memorizers, the accounting documents are released in sequence, and automatic sequencing of the accounting documents is achieved.