The invention relates to air tank type down jacket with raised volume feeling and a manufacturing method thereof, especially relates to an air tank type down jacket with the raised volume feeling made of an out shell and a lining, of which the air permeability is controlled in a preset scope. According to the invention, the volume feeling and the feeling of wearing are both improved, and the air permeability of a sewing portion is reduced to be substantially lowered than sewing portions in the prior art to effectively maintain the volume feeling.