The invention discloses an LED
chip structure of a
graphene structure and a manufacturing method of the LED
chip structure. A nucleating layer, a non-doped GaN layer, an N-type doped GaN layer and an InGaN / GaN multiple-
quantum-well structure are formed on a substrate in an epitaxial mode; after the multiple-
quantum-well structure grows in the epitaxial mode, growth is stopped, and a P-type
doped graphene layer is adopted for replacing a P-type GaN epitaxial layer; a P
electrode is manufactured on the P-type
doped graphene layer, the N-type doped GaN layer is formed through
etching and an N
electrode is manufactured on the N-type doped GaN layer; the P
electrode is correspondingly arranged on the P-type
doped graphene layer; an epitaxial
wafer is etched, and the N electrode is manufactured on the N-type doped GaN layer. Through the LED
chip structure of the
graphene structure and the manufacturing method of the LED chip structure, maldistribution of In groups caused by P-GaN growing after the InGaN / GaN multiple-
quantum-well structure through temperature rise can be avoided, and
wavelength homogeneity can be improved easily; epitaxial growth of the P-GaN is avoided, cost is reduced, and productivity is improved; an ultrathin
graphene layer high in
light transmission and
conductivity is adopted as a P-type current expanding layer, the light outgoing efficiency can be effectively improved, and the external
quantum efficiency can be improved.