The invention provides a portable equipment task processing method and device as well as portable equipment. The method comprises the following steps: acquiring task requirement information of a user; determining an execution system for responding to a system task corresponding to the task requirement information from a first system and a second system according to a preset policy; and transmitting the task requirement information to the execution system, and executing the system task according to the task requirement information by utilizing the execution system. In the method, the execution system is determined automatically by the system according to the task requirement information, and completes the system task corresponding to the task requirement information of the user, so that the user operation is simplified.