The invention relates to an anti-coincident-code material encoder, which belongs to the technical field of material purchase and inventory information management. According to the technical scheme, the material encoder comprises the following functional modules: (1) a material category management module for managing size and name classification data related to a material; (2) an approval management module for providing management on approval operation of application of a material name and a material code; (3) a material application management module for providing application function of the material name and the material code for a code applicant; (4) a correspondence management module for maintaining various correspondences in a handling process of material code application; (5) an interface management module; (6) a query statistical management module; (7) a system management module for configuring various necessary parameters for system running; (8) a basic information management module; and (9) a user management module. The material encoder has the beneficial effects of performing information management on the material, avoiding coincident code of the material, improving management level, reducing overstock and lowering cost.