The invention discloses a granular mineral chlorine-free drying agent. The key points of the technical scheme are that: the granular mineral chlorine-free drying agent consists of red bentonite, dolomite attapulgite clay, bauxite, sulfuric acid, high-viscosity attapulgite clay powder and sodium aluminate. A production method for the granular mineral chlorine-free drying agent comprises the following steps of: mixing red bentonite, dolomite attapulgite clay, and bauxite and acidizing, and stirring and mixing the acidized mixture and high-viscosity attapulgite clay powder, tabletting, performing heat treatment, crushing the mixture which is subject to heat treatment and sodium aluminate together, and packaging to obtain the granular mineral chlorine-free drying agent. The granular mineral chlorine-free drying agent is large in a static water adsorption amount, does not contain chlorine, is non-toxic, tasteless and environment-friendly and does not have contact corrosivity. The granular mineral chlorine-free drying agent can be placed in various packaging bags, is suitable for preventing instruments and meters, electrical equipment, electronic products, medicines, foods, textiles, leather, shoes, clothes and various packaged products from being damped and mildewed or corroded.