Abstract: A Mental IQ Detection using the ML technology is software based application which is designed to detect the mental IQ with their age.[1]Machine Learning is that develops algorithms by learning the hidden patterns of the datasets used it to make predictions on new similar type data. We are using Machine learning for the mental IQ detection because we can improve accuracy of the software application, it has large amount of data Making predictions about future event ML has wide range of libraries and algorithm that are available.[2]We will be using KNN Algorithm, Logistic Algorithm, Linear Algorithm, etc. IQ test continue to be one of most reliable tools to measure intelligence skills of the human. The Intelligence Quotient (IQ) tests and the corresponding psychometric explanations dominate both the scientific and popular views about human intelligence. It starts with getting information from registration form using java on android studio, where each user will have to give test series provided by the developer.[3] After user gives test series, that’s where ML comes in where we need to process the date using different libraries and algorithms to detect the Mental IQ of the user with their age, ensuring transparency and security of each user