To obtain a ceramic slurry feeder for reducing poor appearance of a ceramic green sheet in a case of forming the sheet using a gear pump.

The ceramic slurry feeder is provided with a flow passage mixing part between the gear pump and a ceramic slurry spouting opening in order to disperse abrasive powder concentrating on the gear portion in the ceramic slurry spouted in laminar flow from the gear pump feeding the ceramic slurry to the ceramic slurry spouting opening. A black line does not appear in the ceramic green sheet made of the ceramic slurry by mounting the flow passage mixing part. Therefore when the ceramic green sheets are stacked on each other and sintered, it is possible to eliminate poor appearance due to mottles in the sintered body.