Abstract: 【Purpose/significance】Study the priority of function development for government intelligent Q & A system, and provide a reference for resource allocation in system construction【. Method/process】Use the KANO model and Better-Worse coefficient, a ques⁃ tionnaire survey was conducted to investigate the users of the government intelligent Q & A system and identify the importance of vari⁃ ous possible functions of the system.【Result/conclusion】Among the 16 sub-functions of dialogical agent, rational agent, and embod⁃ ied agent, the priority order of development is: question and answering, multi-channel consultation, recommendation of related ques⁃ tions, synonymous understanding, manual transfer, hotspot service, humanization of language, contextual awareness, emotional feed⁃ back, question and answer correction【. Innovation/limitation】This article creatively points out the functions that should be prioritized for the development of government intelligent Q & A systems: In terms of the dialogical agent, priority should be given to strengthening semantic understanding ability and automatic standardization of user question; in terms of the rational agent, priority should be given to enhancing the recommendation of related and hot issues, and cautiously control the function of regional navigation and the function of sensitive vocabulary recognition; in terms of the embodied agency, priority should be given to strengthening emotional response and shaping a positive government image.