The so-called installation contract, that is, a relatively common economic contract, is generally an agreement signed by the construction unit and the construction unit to complete the relevant construction and build buildings or structures.

The decoration contract dispute belongs to the construction project contract dispute. According to the law, the construction project contract dispute shall be governed by the real estate dispute, which belongs to the exclusive jurisdiction and is under the jurisdiction of the people's court where the real estate is located. Interpretation of the Supreme People's Court on Several Issues Concerning the Application of the Civil Procedure Law of the People's Republic of China Article 28 The real estate disputes stipulated in Item 1 of Article 33 of the Civil Procedure Law refer to the real property disputes caused by the confirmation, division and adjacent relationship of the rights of real estate. Disputes over rural land contract management, housing lease contracts, construction projects and policy housing sales contracts shall be governed by real estate disputes. If the real estate has been registered, the location recorded in the real estate register is the real estate location; if the real estate has not been registered, the real estate location is the real estate location.