By virtue of analysis of Leibniz’ «phenomenon» concept, the author tries to prove that monadology of Leibniz arises as an attempt to give the metaphysical ground of his phenomenology. Three reasons allow us to assert that we deal with a phenomenological theory of Leibniz: first, the description of the phenomenon as an initial object of every cognition; second, confession of phenomenal character of the material world and spatio-temporal relations, and also of independence of the phenomenal world from the subject perceiving it; third, the phenomenal experience determines the limits of every cognition of reality, therefore all concepts and principles of metaphysics are examined by Leibniz only as hypotheses, which must be conformed with phenomenal experience. The Leibniz, particularly in two points: it rehabilitates the concept of substance, and it is oriented to the ground of scientific experience.
