  We study the static three quark potential using lattice QCD simulation. At
zero temperature, the three quark potential is extracted from the baryonic
Wilson loop and fitted to the phenomenological form, the sum of the Coulomb
term, linearly rising term and the constant. We compare two types of the linear
term, ``$Y$'' and ``$\Delta$'' type, and find that the string tension almost
coincide with $\sigma_{Q\bar{Q}}$ in the former case. We also investigate the
three quark potential at finite temperature using the Polyakov loop
correlation. In the deconfined phase, the screened potential is observed
similarly to the case of $Q\bar{Q}$ system.
