The present disclosure relates to a method and a server capable of performing a dementia test without the need for a dementia test subject to personally visit a test center and capable of automatically performing a dementia test by an artificial intelligence, not an individual. According to an embodiment of the present disclosure, a dementia test may be performed without the need for a dementia test subject to personally visit a test center, thereby improving the effectiveness of a dementia test by filtering patients who need to visit the test center and proceed with a follow-up test, and a dementia test may be automatically performed by an artificial intelligence, not an individual, thereby saving the time required for the dementia test and costs such as labor cost for the test.