A learning device for performing a machine learning based on a learning model using data input to an input layer, includes: a calculation part configured to calculate a predetermined number of features, in which simulation data as a result of simulating semiconductor manufacturing processes by setting environmental information inside a process vessel in which the semiconductor manufacturing processes are performed and using a predetermined component provided in the process vessel as a variable, and XY coordinates parallel to a plane of a wafer are associated with each other; and an input part configured to input the calculated predetermined number of features to the input layer.