There is provided a scenario generation device capable of automatically generating a scenario for generating an animation of rich expression desired by a user even from a text created by the user who has no special knowledge about creation of animation. In the device, a scenario generation unit generates a scenario from a text inputted by the user, and a scenario edition unit edits a scenario with information recalled from words in the generated scenario by using external information acquired by an external information acquisition unit. That is, the scenario generation device recognizes information to be added to the text created by the user and adds information to the scenario by using external information acquired from a device owned by the user and a device existing in a communicable range. Thus, even the user has no special knowledge, the user can generate a scenario for realizing animation of expression near to the user's intention.