The pseudoaneurysm of the popliteal artery following an arthroscopic posterior cruciate ligament reconstruction is rare. We present a case of the delayed pseudoaneurysm of the popliteal artery after arthroscopic posterior cruciate ligament reconstruction. Open excision of the pseudoaneurysm and pin-point repair were done. Retrospectively reviewing the case, we found that the relation of the popliteal artery and posterior cruciate ligament on preoperative magnetic resonance images can predict the complication of pseudoaneurysm of the popliteal artery.