  We observed the pulsar PSR J1648-4611 with Suzaku. Two X-ray sources, Suzaku
J1648-4610 (Src A) and Suzaku J1648-4615 (Src B), were found in the field of
view. Src A is coincident with the pulsar PSR J1648-4611, which was also
detected by the Fermi Gamma-ray Space Telescope. A hard-band image indicates
that Src A is spatially extended. We found point sources in the vicinity of Src
A by using a Chandra image of the same region, but the point sources have soft
X-ray emission and cannot explain the hard X-ray emission of Src A. The
hard-band spectrum of Src A can be reproduced by a power-law model with a
photon index of 2.0^{+0.9}_{-0.7}. The X-ray flux in the 2-10 keV band is 1.4
\times 10^{-13} erg cm^{-2} s^{-1}. The diffuse emission suggests a pulsar wind
nebula around PSR J1648-4611, but the luminosity of Src A is much larger than
that expected from the spin-down luminosity of the pulsar. Parts of the
very-high-energy gamma-ray emission of HESS J1646-458 may be powered by this
pulsar wind nebula driven by PSR J1648-4611. Src B has soft emission, and its
X-ray spectrum can be described by a power-law model with a photon index of
3.0^{+1.4}_{-0.8}. The X-ray flux in the 0.4-10 keV band is 6.4 \times 10^{-14}
erg s^{-1} cm^{-2}. No counterpart for Src B is found in literatures.
