According to the application requirements of criminal investigation and material evidence, a kind of large aperture ultraviolet (UV) Fourier transform imaging spectrometer is developed which works in the wavelength range of 254~380 nm. The time-spatial modulated structure with high flux is used for the prototype to overcome the problem of insufficient energy in existing systems. The prototype uses image plane interferometer combined with Offner imaging lens to achieve approximately linear distribution of optical path difference (OPD) on raw interferogram. The maximum OPD can be achieved as large as the spatial modulated interferometers in UV band, and the maximum resolution of wavenumber is 80 cm-1 in theory. As the front objective lens and the UV beam splitting cube are made of fused silica and the imaging lens is catoptric, the transmittance is high in the whole working waveband. The experimental result shows that the raw interference pattern can be taken by the prototype on the short wave end. The spectral image data cube can also be taken and rebuilt correctly. The prototype can identify the emission peak at 365 nm when the mercury lamp is used as the illuminator.