Sustainable development of industry is closely related with tries to automation in all possible ways in industrial processes. Recent advances in automated control systems have led to decreasing the cost of hardware and energy consumption. The main advantages of soft sensors are low cost, flexibility and versatility. Despite these benefits, there are some problems with using them. First problem is what and how need to be measured to use this date in calculation some virtual data. Second one, using proper software and the time of these calculations. The goal of the soft sensors is generation valid virtual data for the controller to increase the accuracy and quality of the automated control. In this paper, application of soft sensors in the automated control in different industrial processes is discovered