A　series　of　Ni-based　catalysts　supported　on　the　ZSM-5　with　different　morphologies　were　facilely　synthesized　and　employed　as　the　CO2　methanation　catalysts.　The　achieved　catalysts　were　systematically　characterized　by　various　techniques.　Besides,　the　in-situ　DRIFTS　was　also　performed　to　investigate　the　intermediates　of　the　CO2　methanation　reaction　process.　It　was　found　that　the　catalyst　with　the　short　b-axis　ZSM-5　support　displayed　much　higher　activity　than　other　counterparts　supported　on　nano　ZSM-5　and　commercial　ZSM-5.　The　possible　reason　for　this　could　be　attributed　to　the　unique　morphology　of　short　b-axis　ZSM-5　zeolite　with　large　external　surface　area　(489.7　m(2)/g).　In　addition,　it　was　also　found　the　La　doped　catalyst　displayed　much　higher　low-temperature　activity　(200-300　C)　and　CH4　selectivity　than　the　pristine　counterpart　without　modification.　Resultantly,　the　catalyst　with　both　the　short　b-axis　ZSM-5　support　and　La2O3　modification　displayed　the　optimum　catalytic　performance.　Therefore,　the　morphology　of　the　support　and　the　selection　of　modifier　were　considered　as　the　important　concerns　when　designing　and　synthesizing　Ni　based　CO2　methanation　catalysts　with　highly-developed　performances.