According to an embodiment, an extraction device includes an elastic body, first and second pressing units, and a pulling unit. The elastic body includes a first end facing a first direction, a second end, and a contact face facing a second direction intersecting with the first direction. The elastic body can expand in the second direction. The first and second pressing units press the first and second end. The pulling unit pulls the second pressing unit toward the first direction. The contact face comes into contact with an object when the elastic body compressed by pressing forces of the first pressing unit and the second pressing unit expands in the second direction. The pulling unit pulls the object with friction between the object and the contact face when the pulling unit is pulled in the first direction while the contact face of the elastic body is in contact with the object.