The utility model relates to the technical field of flour detection, and discloses a flour sampling device for flour detection, which comprises a
spherical probe, a limiting tube is fixedly mounted on the outer side of the
spherical probe, a feeding hole is formed in the outer end of the
spherical probe, a spherical plug is movably mounted in an inner cavity of the limiting tube, and a feeding hole is formed in the inner cavity of the limiting tube. A material leakage baffle is fixedly mounted on the inner side of the limiting
pipe; through the arrangement of the spherical probe, the arc-shaped feeding opening is conveniently formed, so that the internal spherical plug can conveniently plug the feeding opening, through the arrangement of the limiting
pipe, the movable space is conveniently provided for the spherical plug, and when the device is used, the air pushing plug is controlled to be pushed inwards through the
oil pump, so that air extending into the long
pipe is compressed, and the air is compressed; the spherical plug is pressed against the feeding port under the action of pressure, so that the feeding port is blocked, after the feeding port is blocked, a user pushes the spherical probe to be inserted into the flour, and after the whole probing long pipe is immersed into the flour, the whole probing long pipe is inserted into the flour.