  We investigate a scalar sector of the supersymmetric $ SU_C(3) \otimes
SU_L(3)\otimes U_N(1)$ model with right-handed neutrinos. The mass spectra are
derived. We show that only neutral Higgs sector with lepton number L=0 could
have a VEV. There is no mixing between scalars having L=0 and bilepton scalars
having L=2. There are six Goldstone bosons: two in neutral sector, three in
pseudo-scalar sector and one in charged scalar sector. For a given set of input
parameters (five from the $F$ terms and two from the soft term) all the scalar
sectors in this model contain the upper limit of 230 GeV to the mass of the
lightest scalar, which are in agreement with the lower limit of the SM Higgs
boson obtained by LEP.
