  By following the spirit of Verlinde's entropic force proposal
arXiv:1001.0785, we give the differential and integral form of the first law of
thermodynamics on the holographic screen enclosing a spherical symmetric black
hole. It is consistent with equipartition principle and the form of Komar mass.
The entropy of the holographic screen determines its area, i. e.
$S=\frac{A}{4}$. And then we express the metric by thermodynamic variables, to
give an illustration of how the space is foliated by the thermodynamical
potentials.
