A dental impression tray comprises: a handle and an impression-taking frame provided at one side of the handle to support an impression material from a lateral side, wherein the impression-taking frame is formed as a right and left pair, a plurality of vertical taking grooves are formed at predetermined intervals on the inner lateral side thereof, and a taking groove positioned on the left side and a taking groove positioned on the right side are provided so as to have a gradient of 10 degrees and 5 degrees, respectively.
