The Nd∶LiGd(MoO4)2 crystal samples with different orientations were machined, and their Continuous Wave (CW) and actively modulation laser characteristics were measured and analyzed. A laser diode (LD) end-pumped double mirror cavity was used in the experiment, in which the coupling transmittance of the output mirror was 2%. In CW operation conditions, the maximum output powers of a-cut and c-cut crystals were 733 mW and 550 mW, respectively, corresponding optical conversion efficiencies of 11.3% and 6.7%. In acousto-optic (A-O) operation conditions, the maximum output powers of a-cut and c-cut crystals were 180 mW and 135mW, respectively, corresponding optical conversion efficiencies of 2.8% and 1.7%. The optimum pulse experimental results are obtained when the pulse repetition frequency (PRF) is 10 kHz. It is shown that the largest pulse energy and the highest peak power are 15.8 J and 85 W, respectively, which come from the a-cut sample. The shortest pulse width is 153 ns, which comes from the c-cut sample. Experimental results indicate that Nd∶LiGd(MoO4)2 crystals with different orientations can output different wavelengths in 1061 nm for the a-cut sample and in 1 068 nm for c-cut sample. The multi-wavelength emission property of the Nd∶LiGd(MoO4)2 crystal will help its applications to the THz-wave domain.