The utility model discloses a multi-tower cable-stayed bridge provided with double rows of support systems and belongs to the technical field of bridges. According to the multi-tower cable-stayed bridge provided with the double rows of support systems, multiple cable towers are arranged on the multi-tower cable-stayed bridge, the tops of the cable towers are connected with main beams through stay ropes, and tower beam vertical supports are arranged on the two sides in the along-span direction of each cable tower in a certain-distance spacing mode, so that the two sides of each cable tower support the corresponding main beam. According to the multi-tower cable-stayed bridge provided with the double rows of support systems, under the action of automobile live loads, the main beams vertical displacement and tower top longitudinal displacement of the double tows of support systems are basically in accordance with the displacement of tower and beam fixed connection systems, so that the problem of main beam vertical rigidness of a multi-tower cable-stayed bridge of a weak tower structure is solved. Under the action of temperature loads, the tower bottom bent torque of the double rows of floating type support systems is smaller than that of the tower and beam fixed connection systems and meanwhile smaller than that of half-floating systems, and the problem that because the tower and beam fixed connection systems are adopted, stress of the cable tower temperature loads is excessively large is effectively avoided through the double rows of support systems.