The invention discloses a raw coal continuous sampling device and method for a scraper coal hopper effectively solves the problem that in the prior art, the coal powder is injected and a sampling point is easily blocked during coal taking and has the advantages of being high in sampling speed and continuous in sampling. The specific scheme is as follows: a scraper box housing is provided with a raw coal sampling outlet; the scraper box housing is arranged on one side of the coal hopper and is connected to the coal hopper, and the top of the scraper box housing in the coal hopper is of a hollow structure; at least two rotary scrapers are arranged in the scraper box housing; the rotary scrapers prevent raw coal from falling into the coal hopper in a normal state and are driven to rotate by a rotary shaft to push the raw coal in the coal hopper to rotate by a set angle and to be sampled through a raw coal sampling outlet; and the top of the scarper box housing can be hollow in the top, so that the raw coal conveniently falls into the scraper box housing from the upper side.