Objective　To understand the blood supply foundation in the dorsal medial artery network of foot, and provide anatomical basis for the rational design of the dorsal medial flap of foot.　Methods　The origin, course, branch and anastomosis of the blood supply of the dorsal medial artery network of foot were observed by dissecting 20 adult cadaveric foot specimens perfused with red latex.　Results　There were four main sources of blood supply in the dorsal medial artery network of foot, including the cutaneous branches from medial anterior malleolus artery in the medial dorsal foot, the cutaneous branches from the medial tarsal artery in the medial dorsal foot, the cutaneous branches came from the superficial branches and deep branches of the medial plantar artery that were distributed in the medial aspect of the dorsum of foot, and the cutaneous branches from the great toe tibial arteries that were distributed on the edge of the abductor hallucis muscle.  Conclusion　According to the anatomical characteristics of the medial dorsal artery network, two types of pedicled flaps can be designed: medial cutaneous neurocutaneous vascular flap of foot and medial fasciocutaneous flap based on the cutaneous vascular chain.