We present analysis results of the top quark production using
kinematic techniques in ppbar collisions at sqrt s = 1.8 TeV with the Collider
Detector at Fermilab (CDF).  We analyzed a data sample corresponding to an
integrated luminosity of 67 pb^-1.  First, we compare the kinematic properties,
the second and third leading jet E_T of W + >- 3 jet events with expectations
for ttbar production and its background processes, predominantly direct
W + jet production.  The probability that backgrounds fake the excess in the
signal region was found to be less than 0.26%.  Next, we use a scaler sum of
the transverse energies of the lepton, neutrino and jets in W + >- 4 jet events.
This analysis shows ttbar events exist significantly in the event sample,
and enables us to estimate the top quark mass to be M_top = 180 +/- 12^+19_-15
GeV/c^2.  Finally, we analyse the dijet invariant mass in the W + >- 4 jet
events.  It shows a significant mass peak consistent with a mass peak of W
decaying into dijet.  From these results and counting experiment, we have
confirmed previous evidence reported in 1994 April and observed top quark
production.