The invention relates to the technical field of gas turbines, and discloses a combustion press cylinder structure of a gas turbine. A combustion press cylinder comprises an outer cylinder and an inner cylinder, wherein the inner cylinder is positioned below the outer cylinder, the inner cylinder and the outer cylinder jointly form a chamber of the combustion press cylinder, a combustion chamber and a plurality of supports for connecting the outer cylinder and the inner cylinder are arranged in the chamber, the supports are distributed along the circumferential direction of the combustion chamber, and an air introducing hole for communicating the outer cylinder and the inner cylinder is formed in at least one support. According to the combustion press cylinder structure, the structure in the chamber is simplified, and cooling air is prevented from influencing the design of the combustion chamber when being introduced, so that air can uniformly enter the combustion chamber in a circumferential direction.