AbstractTo summarize, a unified interface service framework of multi-dimensional biometric identification fusion application systems is designed in order to unify the docking mode of various biometric identification subsystems and standardize the multi-dimensional biometric identification data and use environment. The framework follows the standard system of video and image information application system in the public security industry. Based on the REST service architecture, it realizes the standardized definition of the interactive interface between the fusion application system and the biometric identification subsystem by HTTP method, including registration and maintenance, target object comparison, image retrieval target, etc. The framework has changed the traditional biometric identification subsystem independent deployment, integration complexity of higher status. Combined with the REST service architecture of portable, simple, high safety and reliability and so on, the framework implements the standardization of multidimensional biometric identification subsystem integration from the application level, implements the standardization of multidimensional biometric data management, and can effectively improve extensibility of integration application system.