The present invention provides a synchronous poultry feeding system, wherein a barrier member is configured through the feed conveying trough. The conveying trough comprises a trough and a fence configured above the trough. The fence is configured with a plurality of feeding openings. The outer edge of the barrier member is close to the inner wall of the trough and the fence. The barrier member can be controlled by the control device to be lifted or lowered inside the conveying trough. In this way, when the barrier member is not lifted, it can block the feed inside the trough, so that the poultry cannot stretch into the trough to eat, while when the barrier member is lifted to an appropriate height, the poultry can stretch from their respective feeding openings into the trough to eat.