Pipeline automatic sampler

The utility model provides a pipeline automatic sampler, includes pipeline, pipeline is last to set up an at least sample pipeline, the sample pipeline is parallelly connected with pipeline, last the 6th valve that is equipped with of pipeline, be equipped with first valve and second valve on the sample pipeline, for the sample section between first valve and the second valve, be equipped with the sample connection in the sample section of sample pipeline, the sample connection has the third valve through piping erection, first, second, third and the 6th valve for electric valve or pneumatic valve and by its time of opening and close of controlling means automatic control. This device simple structure has realized automatic repeatability operation, has reduced workman's intensity of labour, has improved workman's operational environment, has obviously improved the representativeness of sample.