The angular selectivity of transmitting volume Bragg grating (TVBG) is analyzed based on Kogelnik′s coupled-wave theory. The TVBG with a period of 1 μm is prepared in photo-thermo-refractive (PTR) glass with wave-front splitting interference method and two-step heat treatment process. The diffraction efficiency of the TVBG is up to 91.1% The angular selectivity of the TVBG is studied by use of divergent laser beams. The experimental results show that the TVBG has a good selectivity and can be used in angular filtering, which can suppress the medium and high spatial frequency modulation and improve the near-field uniformity of laser beams.