The pilot small CNC machine tool realizes the intelligent management model of the small factory based on the industrial Ethernet and OPC protocol. The pilot small CNC machine tool includes C56 micro CNC lathe, C57 small CNC machine, C17 micro CNC milling machine/micro machining center, C31 small CNC drilling and milling machine, and It is equipped with various manipulators to realize Industry 4.0 and Industrial Internet.