Objective To compare the clinical effect of reconstructing the anterior and posterior cruciate ligaments of knee joint with al-lografttendon and autogenous tendon transplantation. Methods 130 patients with anterior and posterior cruciate ligaments of knee fractured were randomly divided into two groups:the observation group were given allogeneic tendon transplantation while the control group were autol-ogous tendon transplantation. Observed the clinical efficacy of the two groups. Results The operation time of the observation group was ob-viously less than control group(P<0. 05); there was no statistically significant difference in the IKDC of the observation group compared with the control group (P>0. 05);the Lysholm and Tengner score of the two groups were significantly higher compared with the preoperative scores with a statistically significant difference (P<0. 05), but there was no statistically significant difference between Lysholm scoreand Tengner score of the two groups after operation(P>0. 05). Conclusion Allogeneic tendon transplantation has similar curative effect with autologous tendon transplantation, both of them are good transplantation material for anterior and posterior cruciate ligaments reconstruction.