Abstract: A door hinge with automatic returning means composed of; a male hinge member (1), a female hinge member (2), an inner sleeve (3), a transmission rod (4), main spring (5), a driving element (6), a buffer spring (7) and a retainer (8), in which, the male and female hinge members will take an angle of rotation in anti-clockwise when the door is proceeding to its open position, and in turn to effect the driving element and transmission rod to rotate in synchronized operation respectively. When the movement for driving element is being effected through a helical motion of external/internal thread engagement, and with the restraint imposed onto this element by outer sleeve of female hinge member, this element will move upward to press the main spring to retract.