Abstract: A human-environment interactive system and a portable device using the same are provided. The human-environment interactive system includes a ubiquitous computing system, at least one home-equipment, and the portable device. The portable device is suitable for two-way communicating with the portable device, and includes a RF transceiver, a browser, and a controller. When the portable device is taken into an environmental space, the controller actively receives a set of situational information from the ubiquitous computing system through the RF transceiver. The situational information includes a status information of at least one home-equipment, and a real time position information of the portable device. The controller displays this set of situational information in the browser for a user to perceive variations of the surrounding environment, so as to operate the at least one home-equipment through the browser.