The purpose of this research is to acknowledge the effectivity of using association picture media toward the students' "katakana" letter reading comprehension. The hypothesis proposed was the ability of students' "katana" letter reading skill that applies association pictures is more effective to compare if no such media is applied. The research was conducted to grade ten students of SMK Manajemen Jakarta school year 2010/2011. The research used experiment quasi method. The sample was taken from 50 students which consisted of 25 students as experimental class and 25 students as control class. The data collection technique used an instrument of "katakana" alphabet reading comprehension test. The requirement test of data analysis used in this research were Liliefors-test for normality and Fisher-test for homogeneity; it was revealed that the class was normal and homogenous. Hypothesis assessment used t-test which showed t count = 7,67 = 1,67 = t table that rejected H0. It is concluded from the research that association picture media is effective to increase student's comprehension in reading "katakana" letter.