The invention discloses a portable router and a power saving control method thereof. The portable router is capable of routing a signal among the network end and at least one electronic device. Each of the at least one electronic device has a wireless data transmitting function. The portable router comprises a first network module, a second network module, a sensing module and a data processing module. The first network module and the second network module can be switched on or off independently, the first network module is capable of exchanging signal to the network end by the first format, the second module is capable of exchanging the signal to the at least one electronic device by the second format. The sensing module is electronically connected with the network end for generating a status signal in accordance with the pre-determined state. The data processing module is capable of determining and processing a pre-determined function in accordance with the status signal and the pre-determined order.