The invention relates to a bottle set for a four-container station and belongs to the technical field of a compressed natural gas bottle. The bottle set comprises an operating end bracket, a safety end bracket, a bottle body, a flange, an operating end plug, a safety end plug, an O-shaped sealing ring, a K-shaped check ring, a pressure gage tee joint, a pressure gage, a gas inlet and outlet high-pressure ball valve, a 3/4'' alignment thread, a 90 DEG inner and outer threaded elbow, a 3/4'' ball valve, a safety valve, a safety releasing pipeline system, a 1/4'' 90 DEG elbow, a draining valve and a sleeve connector. The bottle set has the advantages that the overall dimension is small; the stability of the frame is high; the problem of inconvenience in moving the bottle set bracket for station is solved; the gas storage volume is greatly increased; the separation of an operating gas inlet and outlet end from a safety releasing end is realized; the sewage discharging for the bottle set at fixed period is realized; and the stress corrosion of the impurity sewage to the gas bottle is reduced.