This paper presents the experimental results of Cr:Mg2SiO4 tunalbe pulsed laser pumped at room temperature by the fundamental 1.06 μm pulses from a Q-switched Nd:YAG laser. The wavelength range can be continually tuned from 1.167 μm to 1.332 μm. The output energy of 11.5 mJ and coversion efficiency of 16% have been achived. Tunable laser output from 0.584 μm to 0.666 μm was generated by frequancy doubling from the Cr:Mg2SiO4 laser.