This research is conducted in order to improve students'vocabulary in the easiest way through using wall picture at seventh grade of SMP Nusantara Indah Sintang. In conducting this research, the researcher used Classroom Action Research (CAR) as the method of research. This research consisted of two cycles and each cycle consisted of four phases, they were:planning, action, observation and reflection. Each cycle was conducted in three meetings, so the researcher conducted this research in six meetings for one month and three weeks. To collect and analyze the data, the researcher used interview, observation, and the students'achievements in pre-test and post-test in order to support the data collected. The result of this research shows that the students'avarage score in pre-test was 45.76, the avarage score in post-test 1 was 65.76, and the avarage score in Post test 2 was 79.61, while based on the class percentage result from the pre-test to the post-tset 2 improve about 66.39%. From this result, the researcher concluded that using pictures at seventh grade of SMP Nusantara Indah Sintang can improve students' vocabulary