The invention provides a stable-size rayon blended yarn weaved fabric and a production technology. The stable-size rayon blended yarn weaved fabric comprises a first layer, an intermediate layer and athird layer which are sequentially arranged from outside to inside, wherein the first layer and the third layer are nonwoven layers; the intermediate layer is prepared through covering yarns by warpknitting; the covering yarns include core yarns and external covering yarns; each core yarn is prepared by compositing a viscose rayon and an acetate silk; and each external covering yarn is a viscoseacetate blended yarn. The production technology is supplied. The fabric is high in moisture absorbing performance, outstanding in breathability, soft, smooth, and high in dyeing performance, and themore important is that the size stability is high.