Hollow NiCoSex(H-NiCoSex)nanospheres encapsulated with carbon shell were prepared via one-step easy solvothermal method followed by the carbon coating process.H-NiCoSex@C has large interior void with the uniform dimension around 350 nm and the thickness of carbon shell around 20-30 nm.Coupling with the large interior void as well as robust protective carbon shell,H-NiCoSex@C can retain the reversible capacity of 805.6 mAh·g-1 after 100 cycles at 200 mA·g-1.In particular,H-NiCoSex@C delivers large reversible capacity of 1532.2 mAh·g-1 upon cycling for 1000 loops at 1000 mA·g-1 with the capacity retention as high as 128.2％upon long period of activation.Even at the high rate of 3000 mA·g-1,its specific capacity still retains up to 659.3 mAh·g-1.The superior lithium storage performances for H-NiCoSex@C profit from its robust hollow core-shell structure as well as enhanced electrical conductivity and ion transport.