Based on the rules of the loess distribution from northwest to southeast in the middle reaches of the Yellow River

the influence factors of solidified soil with the cement-based soil stabilizer were studied including physicochemical properties and minerals. The results show that with the clay content increase

the strength of solidified soil reduced and then increased of which the clay content of 17.0% is the cut-off points. The strength increased with the more alkalinity in soil. The impact of the montmorillonite is better than the illite. The strength increased as the content of the illite added in the illite soil. The strength increased as the cation exchangeable capacity added and the exchangeable sodium percent reduced. The study indicates that the main reason of soil suitability of based-cement soil stabilizer is the different physicochemical properties of soil; and the strength regularity of the solidified soil is that strength increased from northwest to southeast in the middle reaches of the Yellow River