The Sakhalin vole comes in gray-yellow, sand-yellow, tan, and tan-gray, and its tail is short, about 1/3 or 1/4 of its body length.

The ear shell of the Sakhalin vole is normal size, and the palm of the hind foot Only the heels are covered, the rest is bare, and the pads are clearly visible. The skull is thick and solid, and the molars are generally divided into many lobes. The chewing surface is flat, with many left and right staggered triangular tooth rings, and the molars can grow for life.