The characteristics of the Carbonates reservoir in Orods basin are deep burial, high temperature, and high acid reaction rate. Therefore, this paper focuses on the acid-rock reaction mechanism and breaks through the limits of scene using conventional high-viscous acid fluids or introducing complex phases to acids to realize the retardation. This paper presents an aqueous solution polymerization synthesis of a multi-functional retarder called MP-1 by using acrylamide, 2-acrylamide-2-methylpropanesulfonic acid and other functional monomers. Infrared spectroscopy, XRD and thermogratings techniques are used for MP-1 structural illustration. During the acidizing process, the retarder forms an adsorption layer on the rock surface in order to reduce the reaction area between rock and hydrogen ion. Meanwhile, the fluorocarbon functional groups of the polymer are oriented placed on the isolation layer that forms a hydrophobic membrane. In all, two mechanisms cooperate to reduce the contact efficiency between hydrogen ion and carbonates, thus to realize the retardation and obtain long cleavages. Along with acid-resistant reducer and temporary plugging agent, corrosion inhibitor, will optimizing the recipe of a new retarded acid fluid that has a low viscosity and frictional resistance, and constructing a series of acid fracturing techniques for carbonates stimulation. Tests results show that this acid system has a great acid-rock reaction retardation, compatibility with other additives and low friction behavior. It meets the requirements of “closed chamber acid blending + online pumping” craft, and the “enclosed fracturing acidizing” pattern have been applied over 200 wells in Ordos basin. The acid system presented a stable performance in storage and construction pressure, fast solubility and reduced 20–30% of the friction compares to the thickening acid. It’s worth of mentioning that Su-XX well has an open flow capacity at 103 * 104 m3/d.