To obtain a high needle inserting speed and the uniform structure of a needle-inserted fiber fleece.

This system for the needle treatment of a conveyable fiber fleece is provided with at least one conveying device having a plurality of needles that can be inserted into and withdrawn form the fiber fleece. At least one rotating cylinder is provided to make possible a high needle-treatment speed and a uniform structure of the needle-felted fiber fleece. The outside of this rotating cylinder forms a conveying surface for the fiber fleece. The needles can pass through the conveying device from the inside toward the outside. The needles penetrate the fiber fleece perpendicular to the conveying direction and then withdraw. The outside of the rotating cylinder, the fiber fleece, and the needles have a similar speed in the conveying direction during the needle-treatment.