With the rapid development of vehicle engine control technology, original equipment manufacturers (OEMs) have put forward higher requirements for the genuine identification of filter element systems. The article proposes a design scheme for the genuine identification system of automotive filter elements based on digital technology, integrating electronic tags, encryption algorithms and cross-module encryption communication logic, aiming to enhance the real-time performance and reliability of the authenticity judgment of filter elements. This solution can effectively identify the authenticity of filter elements, ensure the secure transmission and storage of data, and provide strong support for the power performance and safety of the engine.