A double-sided needle slot board, frame and puncture needle frame. The double-sided needle slot board has an axisymmetric form, and is provided at one side with at least one needle slot a (1) and at another side with at least one needle slot b (2). The needle slot b (2) is fan-shaped. The double-sided needle slot board is provided with one or multiple needle slots a (1) having a fixed needle insertion angle and needle slots b (2) having a non-fixed needle insertion angle. The needle slot a (1) and the needle slot b (2) respectively correspond to the diameters of puncture needles, and may be designed to meet multiple width specifications. During performance of B-mode ultrasound puncture surgery, based on requirements of a surgeon for a fixed or adjustable needle insertion angle, the double-sided needle slot board can be switched to its front or back side, thus avoiding the need for an additional puncture needle frame, and needle slots can also be switched according to diameter of the puncture needle. The double-sided needle slot board is applicable to various types of B-mode ultrasound puncture surgeries and effectively reduces the amount of equipment used in puncture surgery, providing fast installation, saving resources and reducing costs.L'invention concerne une plaque de fentes à aiguille double-face, une monture et une monture d'aiguille de ponction. La plaque de fentes à aiguille double-face a une forme axisymétrique, et est dotée d'un côté d'au moins une fente d'aiguille a (1) et d'un autre côté d'au moins une fente d'aiguille b (2). La fente d'aiguille b (2) est en forme d'éventail. La plaque de fentes à aiguille double-face comporte une ou plusieurs fentes d'aiguille a (1) ayant un angle d'insertion d'aiguille fixe et des fentes d'aiguille b (2) ayant un angle d'insertion d'aiguille non fixe. La fente d'aiguille a (1) et la fente d'aiguille b (2) correspondent respectivement aux diamètres d'aiguilles de ponction, et peuvent être conçues pour satisfaire à de
