The optimizator of the microprocessor is designed in this final work. The optimizator is based on the AT90S8535 controller. Introduction reviews the peculiarities of the Optimizers design. The analytical part deals with the goals of the exploration of the optimizator. The description of optimization algorithms is presented. Also different types of optimizers, their features and scope of appliance in the technological process of optimization are inspected in this part particle. The rated part of the work consists of the designed solutions, the functional scheme of microprocessor optimizator is designed, as well as the principal electrical scheme and the analysis of the rectangular simplex algorithm. The rectangular simplex method is compared with other methods of search.