The invention discloses a concentrating means of double air current groove gathering fleece and it comprises of a pair of gather rolls which are equipped with herring bone splitting guide groove and installed on the gather roll axis. Two gather grooves are equipped on the middle of the guide groove on the gather roll to forming double air current groove gather rolls, bottom of each gather groove are provided with aeropyles, two gather grooves and the splitting guide grooves are distributed along the face of double air current groove gathering around and continuously. Because the invention adopts the structure of double groove splitting guide gather groove with aeropyles, so the prior air current groove gathering fleece compound yarn gather device can produce compound yarn with special structure, reduce yarn hairiness shapely and enhances yarn strength. And it can produce high-count, smooth appearance and higher intensity yarn to producing sliding, cool, light, thin and high-grade fabric. The fabric is soft, delicate, comfort and glossy, the anti-pilling are increased, wear resistance and rebound elasticity are also improved shapely, and dyeing is intelligible and brilliant.