The invention discloses a pig farm management based form input method. The method is capable of inputting production data of a pig farm piece by piece or in batches conveniently and ensuring the input content to be correct in logic. The method comprises the steps of (1) starting; (2) reading a business operation selected by a user; (3) according to the business operation in the step (2), loading corresponding data; (4) judging whether a current state meets the requirement of the business operation in the step (2) or not, and if yes, performing the step (5), otherwise, performing the step (2); (5) displaying the data in the step (3) and editing and modifying the data according to an actual condition of the pig farm to obtain new data; (6) submitting and storing the new data; (7) judging whether the new data passes the verification or not, and if yes, performing the step (8), otherwise, performing the step (5); (8) storing the new data; (9) judging whether the storage succeeds or not, and if yes, performing the step (10), otherwise, performing the step (5); and (10) ending. The invention furthermore provides an input system.