This study analyses the effect of cross-enrollment between high school and college on the college GPA as well as labor market performances. It uses a three-year(2017-2019) survey of the Graduates Occupational Mobility Survey(GOMS) and sets up the comparison group with similar attributes of the treated group based on the propensity score matching method. The results show that liberal arts students at high school who enrolled in science majors acquired a lower GPA at college than the comparison groups, but they were advantageous in employment. Similar results were found among science students who enrolled in liberal arts majors, but the results were not statistically significant. In addition, no meaningful differences were found in the probability of getting permanent job employments nor in earning levels. The results imply that cross-enrollment decisions do not seem to be a mere strategic behavior when it comes to college entrance. Therefore, it should to be encouraged to exploit the advantages of integrated learning rather than to be discouraged.