The objectives of this research study were (1) to compare the analytical reading skills and problem-solving skills of first-year students, majoring in the Teaching Thai, before and after employing Problem Based Learning (PBL), (2) to study the students’ opinions towards the learning activities with Problem Based Learning. The population in this research was the Forty-Four-First year 152 students in Teaching Thai, studying in the academic year 2022. The sample group in this research was the first year 54 students in Teaching Thai, studying in the academic year 2022. The participants were selected by means of the Purposive Sampling Method. The instruments utilized in this study were lesson plans for analytical reading and problem solving, analytical reading skills and problem-solving skills tests and questionnaires of students’ opinions towards Problem Based Learning. The data were statistically analyzed employing the mean and standard deviation.