This research aims to compare student achievement. Pretest and posttest Knowledge of Information Technology Equipment of Primary 4 at ChumChon Ban Soeng-Sang school, Seong-sang sub district, Seong-sang district, Nokorn-Rajchasima province. For this study, researchers have been studying information from students in Primary 4 at Chumchon Ban Seong-sang school. As a result, the number of students found that 71 people research achievement using a posttest multimedia lesson that a researcher developed (X………) is higher than using a pretest multimedia lesson (X………..) significantly at the level of .o5 achievement efficiency of multimedia instruction Equipment information technology 72.57 / 89.48 was higher when compared with the 70 / 70. For the total satisfaction of learners with multimedia lessons at the (X......) at a good level, from the results of this study contribute to the multimedia lesson students have higher academic achievement.