The invention relates to a blood vessel docking device for a built-in circumcision apparatus. The blood vessel docking device comprises a circumcision cover and a comprehensive cover and further comprises blood vessel corresponding grooves and/or blood vessel docking grooves, wherein the circumcision cover and the comprehensive cover are used for mutually being assembled or connected, a plurality of the blood vessel corresponding grooves are arranged along the periphery of the front end of the circumcision cover, and/or a plurality of the blood vessel docking grooves are arranged along the periphery of the front end of the comprehensive cover. By means of blood vessel corresponding/docking devices arranged on the circumcision cover and the comprehensive cover, a corresponding situation of wrapping blood vessels and U pins can be accurately judged when the circumcision cover and the comprehensive cover are matched; thus, the circumcision cover and the comprehensive cover can be finally located after the blood vessels are accurately located, and a surgical hemostasis effect is greatly improved.