A slidable mobile phone includes a main body, a sliding cover and a positioning device. The main body includes a first combining component and an upper casing. The sliding cover includes a second combining component and a lower casing. A first sliding part is provided on the first combining component, and a second sliding part and a pointing device by detecting the pressed direction are provided on the second combining component. The second sliding part is connected to and relatively slides along the first sliding part, and the pointing device by detecting the pressed direction is used for controlling the slidable mobile phone. The positioning device includes two magnetic elements which are provided on the first combining component and the second combining component, respectively.