  We present CCD $UBVI$ photometric study of poorly studied intermediate age
open cluster SAI 35 (Juchert 20) for the first time. To accomplish this study,
we also used LAMOST DR5, 2MASS, and Gaia EDR3 databases. We identified 214 most
probable cluster members with membership probability higher than 50%. The mean
proper motion of the cluster is found as \mu_{\alpha}cos\delta=1.10 \pm 0.01
and \mu_{\delta}=-1.66 \pm 0.01 mas/yr. We find the normal interstellar
extinction law using the various two-color diagrams. The age, distance,
reddening, and radial velocity of the cluster are estimated to be 360 \pm 40
Myr, 2.9 \pm 0.15 kpc, 0.72 \pm 0.05 mag and -91.62 \pm 6.39 km/sec. The
overall mass function slope for main-sequence stars is found to be 1.49\pm0.16
within the mass range 1.1-3.1 M_\odot, which is in agreement with Salpeter's
value within uncertainty. The present study demonstrates that SAI 35 is a
dynamically relaxed. Galactic orbital parameters are determined using Galactic
potential models. We found that this object follows a circular path around the
Galactic center.
