The invention provides a side button mounting structure of electronic equipment. The side button mounting structure comprises a side button, a button mounting hole and an elastic compression component, wherein the button mounting hole is formed in the side end of a shell of the electronic equipment; the side button is arranged in the button mounting hole; the elastic compression component is arranged on the side end of the shell, is close to the position of the button mounting hole and comprises a fixing part and a pressing part which is connected with the fixing part; the fixing part is connected and fixed to the side end of the shell; the pressing part is bent to go into the button mounting hole and is connected to the side button. The side button mounting structure provided by the invention is provided with the elastic compression component and is connected and fixed to the side end of the shell through the fixing part of the elastic compression component, and the pressing part of the elastic compression component is bent to go into the button mounting hole and is connected to the side button, so that the button is enabled not to come off outwards, certain pressing elasticity of two ends of the side button is also guaranteed, and the problem that a side button of electronic equipment swings and gives abnormal noise in the prior art is better solved. The invention also provides the electronic equipment.