The disclosed invention shows a snow density measurement instrument (B), comprising at least one illumination device (4), at least one light detector (8) and a controlling computational unit (CU), wherein the at least one illumination device (4) and the at least one light detector (8) are arranged in the interior of the snow density measurement instrument (B), which is coverable with an instrument coverplate (3) facing a snow side (S), with improved resolution and easy to use by avoiding tedious preparation work before measurements. This is reached through at least one aperture (5) in the instrument coverplate (3), allowing passage of incident near-infrared radiation (6) in a wavelength range between 800nm and 1000nm through the at least one aperture (5) to the snow side (S), while from ice particles (1) reflected radiation can be measured in the at least one light detector (8) with digital images controlled and processed by the controlling computational unit (CU) in the interior of the snow density measurement instrument (B) in a non-invasively way.