The present disclosure relates to a positive electrode for an all-solid-state battery and an all-solid-state battery including the same. More specifically, by using two types of positive electrode active materials having different nickel contents and particle sizes (D50) as positive electrode active materials, the porosity of the positive electrode is reduced, and the life deterioration phenomenon due to shrinkage and expansion of the positive electrode material included in the positive electrode is improved, thereby exhibiting an effect of improving the energy density and life characteristics of the all-solid-state battery.
