  We compiled a sample of 24 flat-spectrum radio quasars (FSRQs), 21 BL Lacs,
13 FRI and 12 FRII radio galaxies to study the jet power and broad-line
luminosity relation, and the jet power and black hole mass relation.
Furthermore, we obtain the histograms of key parameters. Our main results are
as the follows:(i) We found that the FSRQs are roughly separated from BL Lacs
by the Ledlow-Owen FRI/FRII dividing line in the $\rm{\log{P_{jet}}-\log{M}}$
plane. This result supports the unification model that BL Lacs unify with FRI
radio galaxies and FSRQs unify with FRII radio galaxies.(ii)We found that the
coefficient of the best-fit linear regression equation of
$\rm{\log{L_{BLR}}-\log{P_{jet}}}$ relation is very close to 1 for our sample.
The correlation between broad line luminosity and jet power is significant
which supports that jet power has a close link with accretion.
