For modern hot tandem mill, various shape control means are equipped, so its shape control ability is strong. How to reasonably distribute every stand’s shape control ability is a difficult problem. If the distribution scheme is unreasonable, every stand’s shape control ability maybe waste or offset each other, eventually product’s shape quality is inevitable unsatisfactory. To achieve high precision shape control, a reasonably shape control strategy is necessary, whose job is to make use of every stand’s utmost shape control ability, with a constraint that every stand’s flatness must not be buckling, finally ensuring product’s flatness and crown meet industrial demand simultaneously. A quantitative shape control strategy is put forward by this essay, which is verified on a 1750mm hot tandem mill, the result show its practicability to improve product’s shape quality.