  The R-symmetry formalism is applied for the supersymmetric economical SU(3)_C
X SU(3)_L X U(1)_X (3-3-1) model. The generalization of the minimal
supersymmetric standard model relation among R-parity, spin and matter parity
is derived, and discrete symmetries for the proton stability in this model are
imposed. We show that in such a case it is able to give leptons masses at just
the tree level. A simple mechanism for the mass generation of the neutrinos is
explored. With the new R-parity, the neutral fermions get mass matrix with two
distinct sectors: one light which is identified with neutrino mass matrix,
another heavy one which is identified with neutralinos one. The similar
situation exists in the charged fermion sector. Some phenomenological
consequences such as proton stability, neutrinoless double beta decays are
discussed.
