Raman hyperspectral imaging is an effective method for acquiring molecular spectral-image data cubes of the target being studied. To enhance the detection of weak spontaneous Raman scattering signals，a high-throughput Sagnac Fourier-transform Raman spectroscopic imaging technique is explored. This system does not use the traditional slit design and has a light throughput similar to imaging cameras，enabling a more efficient capture of faint spontaneous Raman scattering signals. Moreover，the utilization of the Sagnac lateral shearing interferometer exhibits polarization insensitivity and minimal dispersion effects，resulting in superior performance in spectral reconstruction via Fourier transformation. An experimental setup is built to evaluate the properties of Er∶YAG and Nd∶YAG ceramic materials. It clearly identifies their Raman characteristic peaks in the scattered spectra and produced sharp imaging outcomes.