The objective of this paper is used to detect the facial expression of human faces. The facial acknowledgment depends on the feeling of the human which is appeared in the face at the specific time. As we know, With the assistance of the OpenCV bundle and Machine Learning we are going to catch the articulation in the specific picture to discover either on the off chance that they are happy or sad. And if we want to use it for many other kinds of expression, we can find it out. Through this paper, our principle reason we are going to demonstrate we can probably catch the outward appearance and with the assistance AI we can most likely identify the expression of any individual.