This　paper　investigates　the　performance　of　the　protograph　based　low-density　parity-check　(LDPC)　codes　for　two　dimensional　(2D)　inter　symbol　interference　(ISI)　channels　with　magnetic　recording　density.　The　protograph　LDPC　codes　have　been　shown　to　possess　excellent　error　performance　over　AWGN　channel　[1]　and　over　partial　response　channel　[2].　Moreover,　the　protograph　structure　that　realizes　linear　encoding　and　decoding　allows　high-speed　encoding　and　decoding　implementations.　We　further　proposes　a　protograph　LDPC　code　for　2D　ISI　channel　with　the　help　of　extrinsic　information　transfer　(EXIT)　chart　fitting　and　asymptotic　ensemble　weight　enumerators.　Analysis　and　simulation　results　show　that　the　proposed　code　has　performance　gain　both　in　low-　and　high-SNR　regions　over　previously　optimized　irregular　LDPC　codes　for　2D　ISI　channels　[3].　©　2015　IEEE.