The research aims at finding whether or not the use of Speed Reading Technique can improve reading comprehension of the eleventh grade students of SMA S GKST IMANUEL Palu. The researcher uses pre-experimental research design. The sample of the research is XI IPS 2 that consist of 20 students. In collecting the data, the researcher uses pre-test and post-test. The mean score of the pre-test is 22.32 and the post-test is 67.2. The result of the data analysis shows that the t-counted value (40.12) is greater than the t-table value (1.721) by applying 0.05 level of significance and 20 degrees of freedom (df). In conclusion, Speed Reading Technique can improve students' reading comprehension.