Reflective mobile phone cinema lens

A reflective mobile phone cinema lens, comprising a semi-reflecting mirror (5), a concave spherical reflecting mirror (4) and a mobile phone (1) screen; the mobile phone (1) screen serves as a display screen to display an image; light passes through the semi-reflecting mirror (5) and arrives at the concave spherical reflecting mirror (4), and then is reflected by the concave spherical reflecting mirror (4) back to the semi-reflecting mirror (5), and is reflected by the reflective surface of the semi-reflecting mirror (5) onto the mobile phone (1) screen. The mobile phone cinema lens enables watching an online movie or playing a virtual reality game on the mobile phone (1) to have a good effect like watching a movie on a big screen in a cinema.