The utility model discloses an anti-blocking type double-channel headspace sampling needle which comprises an outer trocar. Air inlet pipe, air outlet pipe and needle seat. The lower part of the outer sleeve needle is provided with a round hole, the lower part of the outer sleeve needle is provided with a round hole, and the lower part of the outer sleeve needle is provided with a round hole. To the anti-blocking type double-channel headspace sampling needle, a round hole and a circular groove are formed on the side face of the outer sleeve needle. When the utility model is used for a long time, once the plug is blocked, the whole sample injection needle can not be scrapped due to the problems of blowing, water injection and the like, and the design is reasonable and the service life is long.
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