An information capturing device includes a setting storage unit, a positioning unit, an audiovisual recording unit and a control unit. The setting storage unit stores a fence setting of a hotspot. The positioning unit, coupled to the setting storage unit, detects a current position, determines whether the current position is within a first geographic boundary defined by the fence setting, and outputs an activation notification when the current position is within the first geographic boundary. The control unit, coupled to the positioning unit and the audiovisual recording unit, activates the audiovisual recording according to the activation notification to perform audiovisual recording so as to capture environmental data.