The invention provides a preparation process of manufactured distorted concrete. The process comprises the following specific steps that a roller compacted concrete proportion parameter is obtained, and the mortar water-binder ratio and the fly ash doped amount F of the manufactured distorted concrete are confirmed; after the mortar doped volume V is preset through an automatic mortar regulator, mortar with confirmed basic parameters is doped into roller compacted concrete which is already mixed and stirred; after the mixing and stirring time is prolonged by 15 s-20 s, the slump degree of concrete at a machine port is detected, whether the manufactured distorted concrete is suitable or not is evaluated based on the slump degree of the concrete at the machine port, and the slump degree of the concrete is corrected through the automatic mortar regulator; and after the manufactured distorted concrete is suitable, a cable crane is used for performing allocating and transporting on site, and a vibrorammer is used for performing vibrating construction. The preparation process provided by the invention differs from a traditional distorted concrete preparation process, a field pulping system is cancelled, the mixed and stirred manufactured distorted concrete is uniform and high in quality assurance rate, field concrete vibrating parameters can be accurately controlled, construction isconvenient and fast, and manpower and material resources can be greatly saved.