  We consider a particular solution to Slavnov-Taylor identity in
four-dimensional supergravity. The consideration is performed for pure
supergravity, no matter superfields are included. The solution is obtained by
inserting dressing functions into ghost part of the classical action for
supergravity.As a consequence, physical part of the effective action is local
invariant with respect to diffeomorphism and structure groups of transformation
for dressed effective superfields of vielbein and spin connection.
