A.M.Zabelin, E.V.Zelenov, A.N.Safonov.

Using: the invention falls into field of laser equipment, exactly to electrodischarge multitubular lasers with diffusion refrigeration of gas mix. Substance of the invention: in the electrodischarge multitubular laser with diffusion refrigeration of gas mix the gas-discharge tubules in pack are located equally spaced from each other on a circle, and bisectrix planes of mirrors cross corners in angular reflecting prisms are biased relatively each other around of circle centre on a corner = p / n, where n - number of gas-discharge tubules on a circle, that provide sequential transmission of a laser radiation on all tubules, starting from a tubule, which is taking place opposite to a back close mirror, and ending a tubule, which is taking place near opposite end of a circle diameter , and the back close mirror is located near the end of a gas-discharge tubule, perpendicularly to its axis.