An interior lamp for an automobile, comprising: a mounting body, provided with a first magnet piece and an inserting component and comprising an upper plate, and a lamp body, provided with a second magnet piece and an inserting port and comprising an upper plate, wherein the second magnet piece corresponds to the first magnet piece and the inserting port is matched with the inserting component, characterized in that, the first magnet piece and the second magnet piece each has a rectangular shape, the mounting body is a mounting housing and the whole lamp body is embedded under the mounting body so that the upper surface of the lamp body faces the upper plate of the mounting body, the inserting component is located within a portion of the upper housing of the lamp body and formed as an accommodating space, which has a rectangular shape in a horizontal plane, is protruding in a vertical direction perpendicular to the horizontal plane and is located near a rectangular upper surface of the upper housing, on which the second magnet piece is located, and the inserting port is inserted into the accommodating space of the inserting port along the vertical direction. a mounting body, provided with a first magnet piece and an inserting component and comprising an upper plate, and a lamp body, provided with a second magnet piece and an inserting port and comprising an upper plate, wherein the second magnet piece corresponds to the first magnet piece and the inserting port is matched with the inserting component, characterized in that, the first magnet piece and the second magnet piece each has a rectangular shape, the mounting body is a mounting housing and the whole lamp body is embedded under the mounting body so that the upper surface of the lamp body faces the upper plate of the mounting body, the inserting component is located within a portion of the upper housing of the lamp body and formed as an accommodating space, which has a rectangular shape in a horizontal plane, is protruding in a vertical direction perpendicular to the horizontal plane and is located near a rectangular upper surface of the upper housing, on which the second magnet piece is located, and the inserting port is inserted into the accommodating space of the inserting port along the vertical direction. the second magnet piece corresponds to the first magnet piece and the inserting port is matched with the inserting component, characterized in that, the first magnet piece and the second magnet piece each has a rectangular shape, the mounting body is a mounting housing and the whole lamp body is embedded under the mounting body so that the upper surface of the lamp body faces the upper plate of the mounting body, the inserting component is located within a portion of the upper housing of the lamp body and formed as an accommodating space, which has a rectangular shape in a horizontal plane, is protruding in a vertical direction perpendicular to the horizontal plane and is located near a rectangular upper surface of the upper housing, on which the second magnet piece is located, and the inserting port is inserted into the accommodating space of the inserting port along the vertical direction.