A guider for conveying a sheet-shaped object comprises two side plates (13, 14); two wheel components (7, 11) arranged in parallel between the two side plates (13, 14), a top channel plate (9) being disposed on the wheel components; and two side channel components (10, 8) disposed between the two wheel components (7, 11) and the top channel plate (9), the two side channel components (10, 8) forming a horizontal channel with the top channel plate (9), and each forming a lateral channel with the wheel component at the same side, two ends of the side channel component being respectively hinged on the two side plates (13, 14). The guider further comprises two swing plates (6, 17) respectively fixedly disposed on the two side channel components (10, 8); a first driving device for driving the two swing plates (6, 17) to swing; a reversing member (19) hinged between the two lateral channels and used for switch between the two lateral channels; and a second driving device for driving the reversing member (19) to swing. The guider for conveying a sheet-shaped object of the present invention simplifies the structure of the guider, and meanwhile reduces the manufacturing cost of the guider.