a thin heat pipe structure includes a pipe body , a thin - sheet member , and a plurality of bosses . the pipe body internally defines a receiving space , in which a working fluid is provided . the thin - sheet member includes a plurality of open spaces , and the bosses are provided in the open spaces , so that the bosses and the thin - sheet member are disposed in the receiving space of the pipe body at the same time . a method of manufacturing thin pipe structure is also disclosed for manufacturing thin heat pipe structure with reduced time and labor , and protecting a wick structure formed in the thin heat pipe structure against damage . therefore the thin heat pipe structure can be manufactured with increased good yield and at reduced manufacturing cost .