The invention discloses a self-moving temporary support device beside gob-side entry retaining. The device comprises two rows of side-by-side support bodies connected by oil cylinders, the first row of support body is close to the gob-side entry retaining side, and the second row of support body is close to the gob area side, each row of support body comprises 1-5 support unit connected in order, and each support unit consists of a top beam, a hydraulic column, a single wobbling rod and a pedestal, the top beam is connected to the pedestal through the hydraulic column and single wobbling rod, wherein each row of support body at least has 1 support unit equipped with four-bar linkage; the second row of support body is provided with gangue blocking plates close to the gob area side; the tails of the two rows of support bodies are equipped with gangue blocking plates; and horizontal push-pull oil cylinders and longitudinal push-pull oil cylinders are disposed between the two rows of support bodies. The device provided by the invention solves the problem of mechanical safe gangue blocking in the gob area of gob-side entry retaining, at the same time greatly improves the entry retaining speed from a current daily entry retaining of 10m to 15-20m, is in line with the high yield and high efficiency requirements of coal mines, and can be widely applied in coal mining, metallurgy and other industries.