  The cosmological principle states that our Universe is statistically
homogeneous and isotropic at large scales. However, due to the relative motion
of the Solar System, an additional kinematic dipole can be detected in the
distribution of galaxies, which should be consistent with the dipole observed
in the cosmic microwave background temperature. In this paper, we forecast the
mock number count maps from the China Space Station Telescope photometric
survey to reconstruct the kinematic dipole. Using the whole photometric mock
data, we obtain a positive evidence for the dipole signal detection at 3 sigma
confidence level, and the significance would be increased to 4 sigma when we
only use the high-redshift samples with z = 1.8 to 4. This result can provide a
good consistency check between the kinematic dipoles measured in the CMB and
that from the large scale structure, which can help us to verify the basic
cosmological principle.
