The invention relates to a heat pipe (10). The heat pipe comprises a pipe body (1), a capillary structure (2) arranged on the inner wall of the pipe body (1) and cooling liquid accommodated in the pipe body (1), and is characterized in that both the pipe body (1) and the capillary structure (2) are made of thermally conductive plastic. The heat pipe provided by the invention has high design freedom, is easy to manufacture, low in cost, excellent in heat dissipation performance, and has an excellent continuous capillary structure and electrical insulativity. Moreover, the invention further provides a method for manufacturing the heat pipe.