Anti-lost touch pen for computer

The utility model relates to the technical field of touch pens, in particular to an anti-lost computer touch pen which comprises a touch pen body, a mounting seat and a connecting piece. A connecting cavity is formed in the stylus body; the mounting base is movably connected to the connecting cavity, the mounting base can extend out of or be contained in the connecting cavity, and a mounting groove is formed in the mounting base; the connecting piece is provided with a USB connecting part, the connecting piece is rotatably connected to the mounting groove, and the connecting piece is provided with a first position stored in the mounting groove and a second position extending out of the mounting groove. When the touch pen is used, the mounting base is adjusted to extend out of the connecting cavity, then the adjusting connecting piece is rotated to the second position, and the USB connecting part is connected with the USB connecting port in the tablet computer, so that the touch pen body can be connected to th