This paper reports the spectral characteristic of Cr3+-doped La0.83Y0.29 Sc2.88 (BO3)4 crystal. Cr3+-doped La0.83Y0.29Sc2.88 (BO3)4 crystal was grown from a flux of Li6B4O9 by the top seeded solution growth method. Cr3+:La0.83Y0.29 Sc2.88 (BO3)4 crystal exhibits broad absorption and emission bands of Cr3+ ions. The absorption cross-section σa is 3.38×10−20cm2 at 467nm and 4.40×10−20cm2 at 656nm for E//c, respectively. The emission band with a peak at 906nmhas a full width at half maximum (FWHM) of 188nm for E//c. The emission cross-section σe at 906nm is 2.35×10−20cm2 for E//c axis and 2.03×10−20cm2 for E⊥c axis. The fluorescence lifetime of 4T2→4A2 transition is 37.7μs. The investigated result indicates that it may be considered as a potential CW tunable laser crystal material.