A guider for conveying a sheet-shaped object comprises two side plates; two wheel components arranged in parallel between the two side plates, a top channel plate being disposed on a top portion of the wheel components; and a lifting channel plate disposed between the two wheel components and the top channel plate, the lifting channel plate forming a horizontal channel with the top channel plate, and respectively forming lateral channels with the two wheel components. The lifting channel plate is disposed on the two side plates in a height-adjustable manner. The guider further comprises: a first driving device for driving the lifting channel plate to move up and down; a reversing member 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 to rotate. 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.