N-doped　nestlike　carbon　nanosheets　(NCNs-Nx)　were　prepared　successfully　by　a　two-step　strategy,　namely,　the　in　situ　self-assembly　hydrothermal　synthesis　using　glucose　as　the　carbon　source　in　the　presence　of　magnesium　nitrate　and　sodium　carbonate　and　the　controlled　nitrogen　doping　carbonization　using　urea　as　the　nitrogen　source.　The　performance　of　the　corresponding　Pd/NCNs-Nx　catalysts　was　investigated　for　the　selective　hydrogenation　of　quinolines.　The　characterization　of　transmission　electron　microscopy,　nitrogen　sorption　isotherm　measurement,　powder　X-ray　diffraction,　X-ray　photoelectron　spectra,　temperature-programmed　desorption　of　pyridine　and　benzene,　and　the　pyridine　adsorption　experiments　showed　that　the　very　high　catalytic　activities　and　selectivity　of　the　Pd/NCNs-Nx　catalysts　were　related　with　the　high　Pd　dispersion　and　the　electronic　structure　of　Pd　species　as　well　as　the　adsorption　capacity　and　the　adsorption　type　of　quinoline　molecule　on　the　catalyst　surface.