The purposes of this research were to study the level of knowledge, attitudes, and applying knowledge of Professional Laws, Ethics and Ethics Code in real situations on the ward and to compared the differences between knowledge, attitudes and application of nursing students in year 2, 3 and 4 as concern about professional law, Ethics and Ethics Code of Nursing Students in College of Asian Scholars (CAS). The sample group was 121 nursing students for academic year 2019. The research instruments were a Questionnaire on Professional Laws, Ethics and Ethics Code of Nursing Students in CAS consist in 3 aspects, namely 22 questions of knowledge,10 questions of attitude, 11 questions application in ward, verify the questionnaire that IOC content compliance is 0.67-1.00 and the reliability was the accuracy in each aspect as follows: Knowledge aspect was equal to 0.87, Attitude aspect was 0.71 and the application aspect was 0.76. The data were analyzed by descriptive statistics, frequency, percentage, mean, standard deviation, One-way ANOVA and the Kruskal Wallis Test's non-parametric comparison statistics. The research results were found that Level of knowledge about Professional Laws,The Ethics and Ethics Code of nursing students at a high level (x ̅ = 4.01, SD = 0.26), a high overall attitude (x ̅ = 3.36, SD = 0.27) and application in the wards were very appropriate (80.08 %). Comparison of differences in knowledge, attitudes and application in wards between years 2, 3 and 4, there was no statistically significant difference of 0.05.