Middle frame assembly, cabinet and air conditioner

The invention provides a middle frame assembly, a cabinet and an air conditioner, the middle frame assembly comprises a middle frame shell, the middle frame shell is arranged at the front end of a shell assembly, a first appearance strip and a second appearance strip are arranged on the left side and the right side of the middle frame shell respectively, and the first appearance strip and the second appearance strip extend out of the shell assembly to form an appearance shell; the lining plate assembly is arranged on the front side of the middle frame shell; the electric control box assembly is arranged on the rear side of the middle frame shell, the electric control box assembly comprises an electric control box and a control touch key, and the control touch key protrudes out of the side wall of the electric control box and abuts against the shell assembly. According to the middle frame assembly, the structure is reasonable, all the components are convenient to assemble, machining and manufacturing are easy,