A storage case 30 for a portable printer according to an embodiment of the present invention includes: a case body 31 configured to store a portable printer 1; a lower cover 32 configured to open and close so as to cover the lower part of the front surface in which the ejection port M, which a label is ejected after printed therefrom in the portable printer 1, is provided; an upper cover 33 configured to open and close the upper part of the front surface of the portable printer 1; and a printer holder 35 that holds the portable printer 1 in the storage case 30. The printer holder 35 includes a pair of protrusions that protrude partially to the front side of the portable printer 1.