  We report the first results of star counts carried out with the National
Astronomical Observatories (NAOC) 60/90 cm Schmidt Telescope in 15
intermediate-band filters from 3000 to 10000 {\AA} in the BATC survey. We
analyze a sample of over 1400 main sequence stars ($14\le$V$\le21$), which lie
in the field with central coordinates R.A.=$09^h53^m13^s.30$ and
DEC=47$^\circ49^{\prime}00^{\prime\prime}.0$ (J2000). The field of view is 0.95
deg$^{2}$, and the spatial scale was $1\arcsec.67$. In our model, the
distribution of stars perpendicular to the plane of the Galaxy is given by two
exponential disks (thin disk plus thick disk) and a de Vaucouleurs halo. Based
on star counts, we derive the scale heights of the thin disk to be
$320^{+14}_{-15}$ pc and of the thick disk to be $640^{+30}_{-32}$ pc,
respectively, with a local density of $7.0\pm1%$ of the thin disk. We find that
the observed counts support an axial ratio of $c/a\le0.6$ for a de Vaucouleurs
$r^{1/4}$ law, implying a more flattened halo.
  We also derive the stellar luminosity function (SLF) for the thin disk, and
it partly agrees with the Hipparcos luminosity function.
