Mounting platform device for optical cable laying and optical cable laying method

The invention discloses a mounting platform device for optical cable laying and an optical cable laying method.The mounting platform device for optical cable laying is used for being connected to the top of a valve hall, a converter valve is hung in the valve hall, and the mounting platform device for optical cable laying comprises an outer frame, at least one platform component and a plurality of climbing cross beams; the outer frame is used for being directly or indirectly connected to the top of the valve hall and is provided with a working position located above the converter valve. An ascending channel is arranged in the outer frame; the platform component is connected to the outer frame, located in the ascending channel and used for allowing people in the ascending channel to stand. The climbing cross beams are sequentially arranged from top to bottom and connected to the outer frame so that people in the ascending channel can climb up and down in the ascending channel. The safety of optical cable layin