Objective: To analyze the difference of the awareness and utilization of family doctor service between elderly people in urban and suburban areas in N city. Methods: A telephone survey was conducted among newly contracted residents in April 2017 in N city using a self-made questionnaire. This study focused on 9362 elderly people aged over 60 years. The findings of the urban and suburban were compared. Results: More than one-third of the elderly people do not know that they have signed with a family doctor, and more than 40% do not know much about or even know nothing about the service content; the utilization rate of each service is higher than 70%, and the average number of services utilized is more than 4 items per capita. Controlling other demographic factor, the awareness rate of signing with a family doctor for the elderly in suburbs is 1.467 times that in urban areas, the awareness rate of service content in suburbs is 1.717 times that in urban areas, and the average number of services utilized per capita for the elderly in suburbs is 0.630 more than that in urban areas, all of which have statistical significance. Conclusion: There are difference of the awareness and utilization of family doctor service between elderly people in urban and suburban areas. Further work should be down to strengthen family doctor service in practice.