PROBLEM TO BE SOLVED: To provide a manufacturing method of seasoning sauce of shellfish or sea squirt, such as oyster sauce, having the original flavor and taste of the shellfish or the sea squirt as if the shellfish such as oyster or the sea squirt becomes the seasoning, and provide the seasoning sauce.SOLUTION: A manufacturing method comprises: a quick freezing step 3 of freezing quickly shelled shellfish or sea squirt a frozen product crushing step 4 of crushing the provided frozen products an enzymolysis step 5 of performing enzymolysis at a temperature of 10-30°C by adding a degrading enzyme to the provided crushed products a foreign matter removal step 6 of removing foreign matters from the provided liquid product a chief material sterilization step 7 of sterilizing the provided liquid product a cooking step 8 of adding secondary materials to the liquid product after the chief material sterilization and cooking it and a packing and sterilization step 9 of packing the provided cooked product in a container and sterilizing it. A sauce is obtained with the manufacturing method.COPYRIGHT: (C)2016,JPO&INPIT【課題】牡蠣などの貝類やホヤをそのまま調味物にしたような貝類やホヤ本来の旨味、風味を有するオイスターソースなどの貝又はホヤの調味ソースの製造方法及び該ソースの提供。【解決手段】殻から外したむき身の貝又はホヤを急速冷凍する急速冷凍工程3と、得られた冷凍物を粉砕する冷凍物粉砕工程4と、得られた粉砕物に分解酵素を添加して、10℃~30℃の温度で酵素分解する酵素分解工程5と、得られた流動化物から異物を除去する異物除去工程6と、得られた流動化物を殺菌する主材料殺菌工程7と、主材料殺菌後の流動化物に副材料を添加して調理する調理工程8と、得られた調理物を容器に充填し、殺菌する充填殺菌工程9からなる製造方法及び該製造方法によって得られるソース。【選択図】図1