A hinge structure includes two leaves with locking holes and a pivot adapted to be in connection with the two leaves, where each leaf is made of polymer composite carbon fiber and pivot is a pivoting piece made of aromatic polyamide curtain fabric, where the pivoting piece is sandwiched between the two leaves and bonded together therewith by means of thermosetting molding to form a sheet body. The present invention is silent without needing maintenance, labor-saving in door opening and closing, long in hinge life, light-weighted in weight, thin in thickness and good in strength.