  Transit Timing Variation (TTV) of hot Jupiters provides direct observational
evidence of planet tidal dissipation. Detecting tidal dissipation through TTV
needs high precision transit timings and long timing baselines. In this work,
we predict and discuss the potential scientific contribution of SiTian Survey
in detecting and analyzing exoplanet TTV. We develop a tidal dissipation
detection pipeline for SiTian Survey that aims at time-domain astronomy with 72
1-meter optical telescopes. The pipeline includes the modules of light curve
deblending, transit timing obtaining, and TTV modeling. SiTian is capable to
detect more than 25,000 exoplanets among which we expect $\sim$50 sources
showing evidence of tidal dissipation. We present detection and analysis of
tidal dissipating targets, based on simulated SiTian light curves of XO-3b and
WASP-161b. The transit light curve modeling gives consistent results within
1$\sigma$ to input values of simulated light curves. Also, the parameter
uncertainties predicted by Monte-Carlo Markov Chain are consistent with the
distribution obtained from simulating and modeling the light curve 1000 times.
The timing precision of SiTian observations is $\sim$ 0.5 minutes with one
transit visit. We show that differences between TTV origins, e.g., tidal
dissipation, apsidal precession, multiple planets, would be significant,
considering the timing precision and baseline. The detection rate of tidal
dissipating hot Jupiters would answer a crucial question of whether the planet
migrates at an early formation stage or random stages due to perturbations,
e.g., planet scattering, secular interaction. SiTian identified targets would
be constructive given that the sample would extend tenfold.
