With　cetyltrimethylammonium　bromide　(CTAB)　as　a　surfactant,　a　series　of　palladium　nanoparticles　with　various　morphologies　were　successfully　synthesized　by　controlling　the　concentrations　of　CTAB　and　NaBH(4)　in　an　aqueous　solution.　The　morphology　of　the　Pd　NPs　evolved　from　nanospheres　as　interconnected　networks　with　a　rise　in　the　CTAB　concentration.　The　CTAB　and　NaBH(4)　concentrations　were　important　factors　for　the　control　of　the　final　shape　of　the　Pd　nanoparticles.