The invention relates to pressure water reactor nuclear power plant high-radioactivity waste gas normal-temperature delay treatment complete equipment, which is characterized in that the equipment mainly consists of a buffer tank (1), a prefilter (2), a drier (3), a heating device (4), a protection bed (5) and at least two delay beds (6) and (7), wherein the protection bed (5) is filled with active carbon, the delay beds (6) and (7) are connected in series, the gas inlet end of the buffer tank (1) is connected with the output end of a groove tank for collecting waste gas through a pipeline, the output end of the buffer tank (1) is connected with the input end of the prefilter (2), the output end of the prefilter (2) is connected with the input end of the drier (3), the output end of the drier (3) is connected with the input end of the heating device (4), the output end of the heating device (4) is connected with the input end of the protection bed (5), the output end of the protection bed (5) is connected with the input end of the delay bed (6), the output end of the delay bed (7) is connected with the input end of an efficient grain filter (8) through a pipeline, and the output end of the efficient grain filter (8) is connected with the corresponding input end of a plant building ventilation system (9). The invention has the advantages of simple structure, ground saving, energy saving, low operation and maintenance cost, safety and reliability.