Gerontechnology represents an important opportunity for industry, facing the aged society in the future. On the other hand, gerontechnology research is only valuable if the research reults can be realized into products or services that benefit older persons and their caregivers. This paper first describes the background and scope of gerontechnology. Then it presents the challenge of gerontechnology, how to make the trnsition from "professional system" to "consumer products", find the internal motivation of the users, and develop a sustanable business model. Finally this paper presents several possible directions for gerontechnology developments in industry, using "intelligent system" as the keyword.