  We present the results of the long-term (20-year period, from 1996 to 2015)
optical spectral monitoring of the Seyfert 1 galaxy NGC 7469. The variation in
the light-curves of the broad He II {\lambda}4686A H{\beta} and H{\alpha}
lines, and the continuum at 5100A and 6300A have been explored. The maximum of
activity was in 1998, and the variability in the continuum and lines seems to
have two periods of around 1200 and 2600 days, however these periodicities
should be taken with caution because of the red-noise. Beside these periods,
there are several short-term (1-5 days) flare-like events in the light-curves.
There are good correlations between the continuum fluxes and H{\alpha} and
H{\beta} line fluxes, but significantly smaller correlation between the He II
and continuum. We found that the time-lags between the continuum and broad
lines are different for H{\beta} (~20 l.d.) and H{\alpha} (~3 l.d.), and that
He II also has a smaller lag (~2-3 l.d.). The H{\alpha} and H{\beta} line
profiles show a slight red asymmetry, and the broad line profiles did not
changed in the 20-year period. Using the lags and widths of H{\alpha} and
H{\beta} we estimated the central black hole mass and found that it is
~(1-6)x$10^7 M_{\odot}$, which is in agreement with previous reverberation
estimates.
