To provide a manufacturing process managing system exhibiting excellent responsiveness to the reading request from a data reference terminal part only with one server device equipped with a data base.

A communication controller 1 has a data managing part 1a equipped with a data input processing part 1b for preserving various process data to be outputted from a manufacturing terminal part 51 on a buffering device 1m and a data output processing part 1c for outputting the various process data preserved on the buffering device 1m to the server device 2, and the server device 2 is provided with a data base 2d for preserving various process data to be outputted from the communication controller 1, a data input processing part 2b for inputting process data to the data base 2d, and a data output processing part 2c for processing and outputting the various process data stored in the data base 2d in response to a reading request from the data reference terminal part 51 prior to the data input processing by the data input processing part 2b.