The utility model discloses an infrared gas stove with sufficient combustion, which comprises a stove body, an inner gas mixing chamber, an outer gas mixing chamber and an infrared radiating plate. The inner gas mixing chamber, the outer gas mixing chamber and the infrared radiating plate are arranged inside the stove body. The stove is characterized in that at least two injection tubes are respectively connected onto the inner gas mixing chamber and the outer gas mixing chamber and capable of transversally inletting gas into corresponding gas mixing chambers. By adopting the structure with at least two injection tubes which are respectively mounted on the inner gas mixing chamber and the outer gas mixing chamber and capable of transversally inletting gas, during use process, not only the infrared gas stove can perform the gas flow injection function onto two half sides of each gas mixing chamber via a plurality of the injection tubes connected onto the gas mixing chambers, guarantee even distribution of gas flow pressure inside the gas mixing chambers, and have stable combustion, even fire and long service life, but also gas divided into a plurality of portions to be injected into the gas mixing chambers can be sufficiently mixed with air in combustion, and accordingly the gas stove has the advantages of sufficient combustion, environmental-friendly utilization and high heat efficiency. The infrared gas stove can be widely applied to various family and dining occasions.