  We investigate a strategy to search for light, nearly degenerate higgsinos
within the natural MSSM at the LHC. We demonstrate that the higgsino mass range
$\mu$ in $100-150$ GeV, which is preferred by the naturalness, can be probed at
$2\sigma$ significance through the monojet search at 14 TeV HL-LHC with 3000
fb$^{-1}$ luminosity. The proposed method can also probe certain region in the
parameter space for the lightest neutralino with a high higgsino purity, that
cannot be reached by planned direct detection experiments at XENON-1T(2017).
