Double-synchronous-belt lifting type railway platform protection safety guardrail

The utility model relates to a double synchronous belt lifting type railway platform protection safety guardrail which comprises two hollow protection piles and a plurality of sets of protection rope units, section bar frame bodies are arranged in the two protection piles in an up-and-down sliding mode, and a plurality of vertically-extending guide grooves are formed in the sides, close to each other, of the two protection piles at intervals in the front-and-back direction. The multiple sets of protection rope units are distributed at intervals in the front-back direction and are distributed between the two protection piles, the two ends of the multiple sets of protection rope units penetrate through guide grooves of the two protection piles correspondingly and are in sliding connection with the profile frame body, and double-synchronous-belt lifting mechanisms are arranged in the two protection piles correspondingly. And the double-synchronous-belt lifting mechanism is connected and matched with the end part