The invention relates to the technical field of chillers, in particular to a high temperature chiller tube bundle structure. The structure comprises a plurality of heat exchange sections, each heat exchange section comprises a heat exchange section shell, at least one heat exchange tube bundle part is arranged in each heat exchange section shell, the adjacent heat exchange sections are fixedly connected through the respective heat exchange section shells, the multiple heat exchange tube bundle parts are sequentially the first heat exchange tube bundle part to the Mth heat exchange tube bundlepart according to the sequence of contact with high enthalpy gas, the diameters of heat exchange tubes of the first heat exchange tube bundle part to the mth heat exchange tube bundle part are sequentially decreased, heat exchange tubes of the (m+1)th heat exchange tube bundle part to the Mth heat exchange tube bundle part are all finned tubes, the base tube diameters are not larger than the diameter of the heat exchange tube of the mth heat exchange tube bundle portion. By means of the structure, the heat exchange tube bundle portions with different pipe diameters and the tube bundle portionscomposed of the finned tubes are in combined arrangement, heat exchange tube overheating failures caused by the high enthalpy airflow are better prevented, uniform distribution of the heat loads of all stages is better achieved, and meanwhile, the maximum heat transfer area is obtained within a limited space.