This catalog is the first all-sky Fermi-LAT catalog from China, representing a significant milestone in the search for high-energy gamma-ray sources across the entire sky. The raw event files for data analysis are derived from the Fermi-LAT P8R3_V3 survey data. The catalog includes 1,379 newly identified sources with significance levels exceeding 4σ, among which 497 sources have significance levels exceeding 5σ. For each new source, the 4FGL-Xiang dataset provides detailed information, including spatial positions, spectral data, spatial distribution of high-energy radiation, flux measurements, and other key characteristics. The observation period for this dataset spans from August 4, 2008, to December 29, 2023, with an energy range of 500 MeV to 1 TeV. This dataset includes the fellowing files 4FGL-Xiang.fits: This file contains two sub-tables: one listing the new GeV sources and the other listing the new GeV extended sources. 4FGL-Xiang_Region_File.reg: This region file includes all gamma-ray sources across the sky, encompassing our newly discovered GeV sources as well as all sources from 4FGL-DR4. 4FGL-Xiang_Region_File_No_Name.reg: This file contains the same information as 4FGL-Xiang_Region_File.reg but excludes the names of the sources from 4FGL-DR4. 500MeV_TSmap_fits.rar: This archive contains the TS maps of 72 ROIs in FITS format, for energies above 500 MeV. 500MeV_TSmap_eps.rar: This archive contains the TS maps of 72 ROIs in EPS format, for energies above 500 MeV. Table4.xlsx: This file contains the analysis results of the robustness verification.