The invention discloses a bar-code-based material dynamic tracking warehousing data processing system and method. The system includes a database which is connected with a WEB server, wherein the WEB server is connected with a switch through a network, the switch is connected with a plurality of clients, and each client is connected with a handheld terminal in a wired or a wireless manner; a database DB used for storing system data; a data adapter JPA used for mapping data in the relational database into object-oriented data which can be identified by a java language; a data acquisition layer EAO used for packaging sentences for addition, deletion, modification and check operations on the database; an entity object Bean used for a table in a database corresponding to each entity object bean; a service logic layer Service used for packing the EAO layer according to the demand of an mvc controller; and an affair management module TM used for ensuring the integrity of operations on the database. The bar-code-based material dynamic tracking warehousing data processing system and method ensure information authenticity, reliability and undeniability and realize combination of warehouse management, material life cycle management and bar-code management.