Module box mounting assembly and air conditioner

The utility model provides a module box mounting assembly and an air conditioner, and relates to the technical field of air conditioners. The module box installation assembly comprises a rear surrounding plate and a module box, multiple functional modules are integrated in the module box, the rear surrounding plate is provided with a limiting assembly and a fixing piece, the module box is provided with an installation part used for being connected with the fixing piece, and the limiting assembly is used for being matched with the module box so as to limit the module box in multiple directions. And under the condition that the module box is matched with the limiting assembly, the mounting part is aligned with the fixing piece. According to the module box installation assembly provided by the utility model, a plurality of functional modules are integrated in the module box for unified installation, so that the installation space is saved, the installation steps are simplified, and time and labor are saved. 本实用新