  We propose a novel model of the modified (Starobinsky-like) old-minimal-type
supergravity coupled to a chiral matter superfield, that can {\it
simultaneously} describe multi-field inflation, primordial black hole (PBH)
formation, dark matter (DM), and spontaneous supersymmetry (SUSY) breaking
after inflation in a Minkowski vacuum. The PBH masses in our supergravity model
of double slow-roll inflation, with a short phase of "ultra-slow-roll" between
two slow-roll phases, are close to $10^{18}$ g. We find that a significant PBH
fraction in the allowed mass window can be supplemented by spontaneous SUSY
breaking in the vacuum with the gravitino mass close to the scalaron (inflaton)
mass M of the order $10^{13}$ GeV. Our supergravity model favors the {\it
composite} nature of DM as a mixture of PBH and heavy gravitinos as the
lightest SUSY particles. The composite DM significantly relaxes fine-tuning
needed for the whole PBH-DM. The PBH-DM fraction is derived, and the
second-order gravitational wave background induced by the enhanced scalar
perturbations is calculated. Those gravitational waves may be accessible by the
future space-based gravitational interferometers.
