The ability to think critically is very important to develop thinking in solving problems. Critical thinking and problem solving are considered to be a new basis for 21st century learning. The research objective is to analyze students' critical thinking skills. The research design uses quantitative descriptive method. The study was conducted on students of class X IPA at SMAN 7 Cirebon in the 2018/2019 school year which was determined by cluster random sampling. The instrument used is a test

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... stion in the form of a description developed based on indicators of critical thinking skills. Data analysis is carried out in quantitative percentages. Based on the results of data analysis, the average students' critical thinking skills were 49.57% in the very low category. The percentage on the indicator identifies or formulates the problem by 44% in the very low category, the indicator identifies or formulates the criteria to determine an important answer by 51% in the very low category, indicators for building basic skills by 59% in the low category, the indicator concludes at 54% in very low category, indicators induce and consider the results of induction by 50% in the very low category, indicators provide further explanations by 38% in the very low category and indicators compile strategies and tactics by 51% in the very low category. The results of this study provide information about the profile of critical thinking skills of students at SMA Negeri 7 Cirebon is still very low.