Abstract: A portable optical fiber test set controllable through a wireless mobile device includes: a portable optical fiber tester, which has a communication interface and can test an optical fiber; and a wireless mobile device electrically connected to the communication interface, so that the wireless mobile device can control the portable optical fiber tester to test the optical fiber and can upload test results and data, obtained by the portable optical fiber tester, to a cloud through a wireless network or download data from the cloud. The invention utilizes the portable optical fiber tester, which has the communication interface and works in conjunction with a function of the wireless mobile device connecting to the network whenever network is available, so that the invention becomes the portable optical fiber testing device that can be conveniently carried and used.