The　mesoporous　NiCo2O4　microsphere　was　synthesized　via　a　facile　hydrothermal　method　followed　by　thermal　annealing　treatment.　The　surface　morphology,　valence　of　the　elements　and　electrochemical　performance　of　the　samples　were　characterized　by　FESEM,　TEM,　XPS　and　the　electrochemical　workstation.　The　results　show　that　the　as-prepared　NiCo2O4　microsphere　presents　3D　structure　constructed　with　rich　porous　nanoneedles,　and　deliveres　a　high　specific　surface　area.　The　NiCo2O4　microsphere　electrode　reveals　amazing　pseudocapacitive　properties　with　high　specific　capacitance　(1　554　F·g-1　at　1　A·g-1)　and　a　favorable　rate　capability　(87.5%　from　1　to　20　A·g-1)　due　to　the　3D　structure.　Moreover,　the　specific　capacitance　remains　90.4%　of　its　initial　value　after　2　000　cycles　at　5　A·g-1.　The　good　electrochemical　performances　indicate　that　NiCo2O4　microsphere　could　be　a　promising　material　for　supercapacitor　electrode.　©　2017,　Chinese　Society　for　Composite　Materials.　All　right　reserved.