The utility model relates to an aspirating needle, include: the needle file, the syringe needle, but install the syringe needle pivot on the needle file, and resetting means, connect the needle file with between the syringe needle so that the syringe needle reset to initial position. According to the utility model discloses an aspirating needle, because the syringe needle can be for the needle file pivot, when imbibition on specific inclined plane, suitable angle is adjusted to to automatic pivot under the effort that the syringe needle can be exerted on the inclined plane, keeps the best imbibition angle to can realize pushing away the effect of flat membrane strip in the imbibition. The utility model discloses still relate to the membrane strip automatic operation device including this aspirating needle.