This paper aims to discuss the concept, basic characteristics, core issues, research content and the relationship with knowledge fusion of smart intelligence services. Firstly, the intelligence service is divided into four stages--literature service, information service, knowledge service, and smart service--based on objects of the information processes, respectively. The development, definition, characteristics and challenges of smart intelligence service are elaborated. Next, the development of knowledge fusion, the definition of knowledge fusion in the era of smart service, the characteristics of knowledge fusion, the relationship between smart intelligence services and knowledge integration are discussed.Lastly，the core research content of smart intelligence services is put forward.