In order to solve the above problems, the present invention provides a user intention application service method and server for automatically executing a specific application suitable for a user's intention among applications installed in a smart device by grasping a user's intention, And to provide a user intention application service system. A user intention determination application service method according to a preferred embodiment of the present invention includes: a collection step of collecting data from a sensor built in a smart device; A context generating step of generating context information through semantic conversion of the data collected in the collecting step; A transfer step of transferring the context information to a server; An intention grasping step of grasping a user's intention using the transmitted context information; An app service step of determining an application suited to the intention of the user; And a control step of automatically recommending execution or execution of an application corresponding to application information suitable for the user intention determined in the application service step.
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