BACKGROUND. One credit hour lecture is the most common type of learning method at the Mongolian National University of Medical Sciences. Long term lectures tend to be tedious and the students become passive receivers. Making the lectures more interesting is a solution to overcoming these problems. The study was done prerequisite for the necessity of comparative analysis of student satisfaction level, quality improvement and methodological innovation for traditional, interactive and online type of lecture evaluation. Study of the effects of lecture methods on student satisfaction level MATERIAL AND METHODS. The lecture satisfaction level was determined by 408 medical students of 3-5th years. The randomly pickedthird year students were given two types of lectures with different topics. This lecture lesson included 8 credit hour sessions; a 4 hour lecture was selected randomly and was given interactively. After that the students were asked to do a five section questionnaire inquiring their opinion. Statistical analysis was done with SPSS software version 20. RESULTS. According to the research result the student satisfaction level for lecture lessons scored 3.2. The fact that traditional lectures scored 3.74, interactive lectures scored 4.37 showed that use of innovative lecture methods had a direct effect on student satisfaction. (p<0.005)