Considerable　research　efforts　have　been　devoted　to　the　investigation　of　distributed　feedback　(DFB)　organic　lasing　in　photonic　crystals　in　recent　decades.　It　is　still　a　big　challenge　to　realize　DFB　lasing　in　complex　photonic　crystals.　This　review　discusses　the　recent　progress　on　the　DFB　organic　laser　based　on　one-,　two-,　and　three-dimensional　photonic　crystals.　The　photophysics　of　gain　materials　and　the　fabrication　of　laser　cavities　are　also　introduced.　At　last,　future　development　trends　of　the　lasers　are　prospected.　©　2019,　Higher　Education　Press　and　Springer-Verlag　GmbH　Germany,　part　of　Springer　Nature.