Knife holder

A knife holder adapted to be connected to a blade, the knife holder comprising:

• a first handle having a positioning portion formed on a first inner side surface of the first handle, and the blade is disposed on the first inner side surface of the first handle and adjustably engaged with the positioning portion;
• and
• a second handle detachably disposed on the first handle and having at least one accommodating groove formed on a second inner side surface of the second handle, the first handle and the second handle clamp the blade, and the positioning portion is accommodated in the at least one accommodating groove,
• wherein in a use state, the blade is partially protruded beyond the first handle and the second handle, and in a storage state, the blade is completely concealed between the first handle and the second handle,
• wherein the positioning portion has a first bump, a second bump, a third bump, and a fourth bump, and a first positioning groove is located between the first bump and the second bump, a second positioning groove is located between the second bump and the third bump, and a third positioning groove is located between the third bump and the fourth bump.