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Abstract. This study is design research aimed to describe the design result of problem-solving question that can be used to measure mathematical thinking for symbolization aspect in topic linear equation with two ariables. The subjects are three students grade 8 of junior high school. This study used a qualitative technique. There are three questions used in this study. The process of this study consists of two indicators, namely: manipulation symbol and algebra. As the results of this study, for question number 1, student 1 and 2 not correct becuase them can not to manipulation symbol, but student 3 showed of manipulation symbol and algebra. For question number 2, student 1-s answer was correct which also showed manipulation symbol and algebra, student 2 showed algebra but it-s not correct, student 3 showed manipulation symbol and algebra the answer is correct. For question number 3, all of student-s answer was correct, student 1 showed manipulation symbol and algebra, student 2 showed manipulation symbol and algebra, student 3 showed manipulation symbol and algebra