Disassembly and assembly type building decoration suspended ceiling system

The invention relates to the technical field of assembly type buildings, in particular to a disassembly and assembly type building decoration suspended ceiling system which comprises a stable frame, an integral suspended ceiling plate and an installation device, the installation device comprises a lateral support, an installation guide rail, an installation sliding piece, a sliding adjusting assembly, a jacking adjusting assembly and a stable assembly, and the lateral support is fixedly installed on one side of the stable frame; the installation guide rail is fixedly installed on the top of the integral ceiling plate, the installation sliding piece is installed on the installation guide rail in a sliding mode through the sliding adjusting assembly and connected with the lateral support through the jacking adjusting assembly, the sliding adjusting assembly drives the installation sliding piece to move, and the jacking adjusting assembly adjusts the installation height of the installation sliding piece. The sta