To provide a hand-free speech unit for a mobile phone which unit is versatile and adaptive to specification forms of various mobile phone and realizes a hand-free function that allows a driver to be able to make a speech without detaching its hands from a steering wheel in a form provided with design decoration and a beautiful outward appearance.

The hand-free speech unit 1 for a mobile phone consists of a main body case 2 that imitates an animal or a plant, hand-free function components built in the main body case 2, a container section that is built in the main body case 2 to contain wiring and external connection components, a hold means 3 that utilizes an external organ of the animal or the plant or the like in the main body case 2 to hold the mobile phone 7 and a fixing means 6 that removably fixes the main body case 2 to a prescribed place.