The article contains a following information. Absorption and luminescence spectrum of Yb³⁺ in Yttrium Vanadate crystals as well as attenuation kinetics of luminescence level of ²F_5/2 Yb³⁺ ion have been studied. (Absorption and luminescence spectrum of Yb³⁺ in Yttrium Vanadate crystals as well as kinetics of Yb³⁺ ion ²F_5/2 level luminescence decay have been studied. The luminescence profile of ²F_5/2→²F_7/2 Yb³⁺ ion transition in the given crystal was calculated by Fuhtbauer-Ladenburg method. The value of a radiation lifetime Yb³⁺ in YVO₄ is found.