A line-shaped paw-type external fixation device for a patella, comprising a type A: two ends of a line-shaped main beam (1) are respectively provided with a pressure regulation fixing part (2), an arc auxiliary beam (4) is arranged below the line-shaped main beam (1), and two ends of the auxiliary beam (4) are respectively provided with two auxiliary fixing parts (5) and fixing needles (6)； and a type B: one end is the same with the type A, a b-shaped fixing part (10) is arranged below a q-shaped fixing part (9) at the other end, the b-shaped fixing part (10) is provided with a fixing needle (6), an auxiliary fixing part (11) is arranged in the middle, and two sides of the auxiliary fixing part (11) are provided with a splayed needle seat (12) and an auxiliary fixing needle (13). The design of the external fixation device is suitable for matching with various patella fracture displacements； and generally a patella fracture does not need a surgical operation, and fixing needles can be directly punched into a patella for fixation. The external fixation device is convenient and firm to install, large in adjusting range and minimally invasive, and a patient can be prevented from suffering the pain of a secondary operation.L'invention concerne un dispositif de fixation externe de type griffe en forme de ligne pour une rotule, comprenant un type A : deux extrémités d'une barre principale en forme de ligne (1) comprennent respectivement une partie de fixation de régulation de pression (2), une barre auxiliaire d'arc (4) est agencée au-dessous de la barre principale en forme de ligne (1), et deux extrémités de la barre auxiliaire (4) comprennent respectivement deux parties de fixation auxiliaires (5) et des aiguilles de fixation (6) ； et un type B : une extrémité est la même que le type A, une partie de fixation en forme de b (10) est agencée en dessous d'une partie de fixation en forme de q (9) au niveau de l'autre extrémité, la partie de fixation en forme de b (10) compre
