Abstract: A lighting device, including: a lamp housing and a lamp cap connected to each other and formed a closed space; at least one light-emitting diode filament disposed in the closed space; and a stem connected to the lamp cap and electrical conducted with the light-emitting diode filament, wherein the light-emitting diode filament includes: a chip strip structure; a light conversion unit wrapping the chip strip structure; and electrodes located at two ends of the chip strip structure respectively and electrically connected thereto, wherein at least part of the electrodes are wrapped in the light conversion unit; the chip strip structure includes a substrate with a first end and a second end, and a deposition segment located between the first end and the second end; and the deposition segment includes a plurality of deposition units with a connecting layer disposed therebetween, and a conductor layer electrically connects the deposition units.