Seismic bracing systems are engineered assemblies designed to restrain displacement, mitigate vibration, and transfer dynamic loads to primary building structures in MEP installations. As critical seismic protection systems, they provide reliable safeguarding for building service utilities during earthquakes by resisting multidirectional seismic forces. Post-retrofitted mechanical and electrical systems - including water supply/drainage, fire protection, HVAC, gas distribution, power networks, and communication infrastructure - demonstrate enhanced seismic performance when subjected to design-level ground motions (per regional seismic fortification intensity standards). This engineered intervention effectively reduces structural damage, minimizes secondary disaster risks (e.g., pipeline ruptures, electrical fires), and ultimately safeguards both life safety and property preservation.