facial expression recognition is limited to six basic expression and several combination.The expression are classified into emotion categories rather than another technique..It is difficult task to show all facial expressions because in everyday life six basic expression occur so frequently.Emotion is often communicated by small changes in one or two facial features,on the other hand the same facial expression may occured in more than one emotions.The presence or absence of one or more facial actions value may change its prediction.One man can show their facial expression in different manner than expressing the same facial expression by other person.The facial features value changes person to person for the same facial expression.