The invention relates to a cellphone stand, in particular to a universal palm cellphone stand for full-screen operation, and aims to solve the problems that the prior cellphone stand is inconvenient to carry, has limited applicable places, easily causes finger fatigue and is unable to allow single-hand operation of a large-screen cellphone or an electronic device. The universal palm cellphone stand comprises a stand body and a handheld rotary part; the left and right side and lower end of the front of the stand body are provided with projecting edges; the stand body comprises a main plate, an auxiliary plate and a width regulating component; the handheld rotary part is mounted on the back of the main plate; the main plate and the auxiliary plate are connected through the width regulating component; the width regulating component comprises a guide pipe, a return spring, a pull rod, a first retainer and a second retainer; the handheld rotary part is provided with finger sleeves. The universal palm cellphone stand is simple in structure, portable, simple to operate and convenient to use.