The utility model discloses a chlorinator sampling device, including the chlorinator body, be provided with on the chlorinator body be linked together with chlorinator internal chamber, and can make the takeover that the sampler put into or took out, the upper portion of taking over is provided with the control valve, the takeover is provided with the nitrogen gas pipe in the below of control valve. The utility model discloses a chlorinator sampling device to carry out the real -time data monitoring to chlorinator flying dust and chlorinator thickness of bed layer. And then through the chemical examination to the sample result, divide the chlorinator bed height and the burning circumstances appeared to the operation control strategy that the formulation should be taked on next step according to analysis result, the operation more high -efficient, more economic to chlorinator benefits.