The invention discloses a six-container gas storage cylinder group, and belongs to the technical field of gas storage equipment of natural gas automobile refueling stations. The six-container gas storage cylinder group comprises an operation end, an operation pipeline system, an operation end plug, an operation end bracket, a connecting flange, a bottle type container, a safety end, a safety end bracket, a safety end plug, a safety emptying pipeline system, an internal pollution discharge device and an external pollution discharge pipeline system. The invention has the advantages that: the six-container gas storage cylinder group occupies a small area, and is high in gas storage amount capable of reaching 1,640Nm<3> and high in safety performance; operation pipelines are divided into a high-pressure group, a middle-pressure group and a low-pressure group for air supply, so that the quantity of ball valves can be reduced, the manufacturing cost can be reduced, the opening frequency of a compressor can be effectively reduced, and the use cost of a user can be reduced; the safety emptying pipeline system is divided into a high-pressure group, a middle-pressure group and a low-pressure group and discharges pollutants in a concentrated mode, so that three ball valves and three safety valves are saved while the safety discharge quantity is reached, and the manufacturing cost is reduced; the external pollution discharge pipeline system is highly concentrated and discharges the pollutants in a unified mode; and the six-container gas storage cylinder group can be divided into two three-container gas storage cylinder groups. Bolt holes are formed in the brackets, so that the group is easy to assemble and disassemble; and lifting lugs are arranged on the tops of the brackets, so that the group is convenient to hoist.