Disclosed are a graphene oxide thrombus removal shielding needle and a preparation method therefor. The graphene oxide thrombus removal shielding needle is provided with a plurality of flexible rods and a plurality of self-rotating needles corresponding thereto. The plurality of flexible rods and the plurality of self-rotating needles form a large-range rotary grinding tool capable of carrying out a rotary grinding operation in a wider range, and meanwhile, since the automatic action of each self-rotating needle is controllable, an operator can select one or more self-rotating needles to rotate, thereby realizing rotary grinding in a small range and improving the precision of the rotary grinding. Furthermore, since a camera and a laser measuring device are provided, the operator can directly observe the conditions inside a blood vessel via a display, thereby better facilitating operation. The body of each needle is provided with two different kinds of grinding blocks with an inclined portion lower than a grinding surface portion thereof, and the two kinds of grinding blocks being arranged in opposite directions, such that the adsorption and drug application processes are not influenced by the grinding process, and the suction of small thrombi and the feeding of a thrombolytic drug can be performed simultaneously during grinding.L'invention concerne une aiguille de blindage à base d'oxyde de graphène d'élimination de thrombus et un procédé pour sa préparation. L'aiguille de blindage à base d'oxyde de graphène d'élimination de thrombus est pourvue d'une pluralité de tiges flexibles et d'une pluralité d'aiguilles autorotatives correspondant à celles-ci. La pluralité de tiges flexibles et la pluralité d'aiguilles autorotatives forment un outil de meulage rotatif à grande plage en mesure de réaliser une opération de meulage rotatif dans une plage plus large et, pendant ce temps, étant donné que l'action automatique de chaque aiguille autorotative peut être commandée, un
