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We report a 31.2 W cw diode-pumped cryogenic Ho(0.4at.％),Tm(4at.％):GdVO4 laser in a dual-crystal cavity.The pumping sources are two fiber-coupled laser diodes with a fiber core diameter of 0.4 mm,both of which can supply 42W near 802nm.With an incident pump power of 70.3W at 802.4nm,a cw output power of 31.2 W at 2.05 μm is attained,corresponding to an optical-to-optical conversion efficiency of 44.4％.The M2 factor is measured as ～1.3 under an output power of 20 W.