In recent years, great progress has been made in hypernuclear physics through new experimental techniques as well as theoretical development. Precision γ-ray spectroscopy of hypernuclei has revealed fine structure of various light Λ hypernuclei. Introduction of the (π-, K+) reaction has opened a possibility of studying neutron-rich Λ hypernuclei. The J-PARC facility will allow us to accelerate these experimental studies of Λ hypernuclei and extend hypernuclear physics to double strangess nuclear systems.