The thermal lensing effects of 808 nm and 885 nm LD end-pumped NdCNGG 935 nm laser are investigated by experimental and theoretical methods. The thermal focal length of the laser pumped by 885 nm is about 6.8 times of the one pumped by 808 nm when the absorbed power reaches to 10 W. Meanwhile, the temperature gradient in crystal is smaller under 885 nm pumping. At the pump waist position, the maximal values of the crystal temperature under 885 nm and 808 nm pumping are 287.76 K and 310.05 K, respectively, in experiment. At the pump face, the maximal values of the crystal temperature under 885 nm and 808 nm pumping are 285.78 K and 317.18 K. Compared with the 808 nm pumping scheme, the slope efficiency increases by 43% (from 4.6% to 6.6%) with an 8% reduction (from 3.31 W to 3.05 W) in the oscillation threshold under 885 nm direct pumping scheme.