  In the context of the standard SUSY GUT scenario, we present a detailed
analysis of the softly broken finite supersymmetric grand unified theory. The
model, albeit non-minimal, remains very rigid due to the requirement of
finiteness. It is based on the $SU(5)$ gauge group and is UV finite to all
orders of perturbation theory. It contains three generations of the matter
fields together with four pairs of Higgses. The requirement of UV finiteness
fixes all the Yukawa couplings at the GUT scale. Imposing the condition of
universality on the soft couplings at the Planck scale and then extending the
condition of finiteness to them, one gets a completely finite unified theory
above $M_{GUT}.$ This makes the fine-tuning procedure more meaningful and leads
to the usual Minimal Supersymmetric Standard Model below $M_{GUT}$. All the
masses of the ordinary particles including Higgses are obtained due to the
Higgs mechanism at the electro-weak scale. The hierarchy of quark and lepton
masses is related to that of v.e.v.'s of the Higgs fields and is governed by
the Higgs mixing matrix in the generation space. Superpartners develop their
masses according to the RG equations starting from the soft terms at the Planck
scale. The suggestion of complete finiteness and maximal simplicity of the
unified theory leads to the connection between the initial values of soft SUSY
breaking parameters, namely $m_0^2=1/3m_{1/2}^2,\ A_t=A_b=A_\tau=-m_{1/2}, \
B=-m_{1/2}$, so that the number of free parameters is less than that of the
MSSM.
