Campilli was a member of the
Italian People's Party, but during the
Fascist rule he did not involve in political life He also served as the minister without portfolio and then the minister of transport in the
sixth cabinet of De Gasperi from 1950 and 1951, the minister of industry and commerce in the
seventh cabinet of De Gasperi in the period 1951–1953), minister without portfolio in the
cabinet of De Gasperi in 1953 and in the
Pella cabinet between 1953 and 1954. He held the same post in the cabinets of
Fanfani (1954),
Scelba (1954–1955),
Segni (1955–1957) and
Zoli (1957–1958).{{cite encyclopedia|title=Campilli, Piero|encyclopedia=Enciclopedia Italiana|language=it|year=1961 ==Death==