Introduction: Nowadays, the use of composite resin material as restorative material increases in line with patient’s demand. Composite resin is a tooth colored patching material inclusive of resin matrix, fillings, and coupling agent to combine resin matrix, fillings, and activator-initiator for resin polymerization. The aim of this research is to evaluate the effect of lighting distance on surface hardness of hybrid composite resin when activated by light emitting diode (LED). Methods: The samples used were 30 disc-like hybrid P60 composite resins (61% silica/zirconia filler and ma-trix Bis-GMA, Bis-EMA, UDMA, and TEGDMA) with a diameter of 6 mm and the thickness was 2 mm, lighted by an LED for 20 seconds. They were divided into 3 groups with 10 samples in every group. Each group was exposed to three (3) different lighting distance which were 0 mm, 2 mm, and 5 mm. Every sample in each group was evaluated with Vicker Hardness Test and the results were then analyzed with one-way ANOVA to evaluate the difference of lighting distance on surface hardness of hybrid composite resin. Results: There were differences in surface hardness value between hybrid composite resin sample with different lighting distance. Statistic test result shown hardness mean change of composite resin between 0 mm and 2 mm lighting distance with 0.00 significance (p<0.05), be-tween 0 mm and 5 mm lighting distance with 0.00 significance (p<0.05), and 2 mm and 5 mm lighting distance with 0.05 significance (p<0.05). Conclusion: According to the result of this research, we concluded that the further lighting distance, the more surface hardness decline of hybrid composite resin.