The topological properties of photonic bands are directly influenced by the magnitude and spatial distribution of the Dirac mass term. By engineering mass-term lattices with spatial inhomogeneity on topological metasurfaces, the optical bound state can be precisely controlled, enabling the realization of configurable optical Dirac cavities. In this paper, we investigate how the trapped light and quality factor for Dirac cavities based on topological metasurfaces can be manipulated through varying mass-term lattice arrangements. The results show that incorporating spatially distributed mass terms into metasurfaces significantly enhances the localization of light fields under topological protection. In addition, discrete and smooth mass-term distributions correspond to different regulation mechanisms. By systematically optimizing the design of the mass term, the localized intensity and spatial extent of topological Dirac cavities can be flexibly tuned, facilitating the development of high-quality, directionally enhanced laser systems.