This study aims to determine the effect of providing Pedagogical Skills Excercise (PSE) on the teaching ability of preservice chemistry teachers in the Field Experience Practice (FEP). The PSE used in this study consist of three different aspects, namely the skill of developing teaching materials, the skill to manage the classroom, and the skill to carry out the evaluation process. The FEP program is created as part of student teachers' curricula created by the university in collaboration with random schools in a specific area. This study was carried out in two different phases, first, the PSE process was given to the pre-service chemistry teacher, second, the FEP program was conducted by a pre-service chemistry teacher at a random school selected by the university (rular, urban, or remote schools). Eighteen pre-service chemistry teachers of Islamic University of Kalimantan Muhammad Arsyad Al Banjari Banjarmasin participated in this study. This study starts from the second semester of the 2016/2017 school year until the first semester of the 2017/2018 school year. The data were collected through observation, interview, and test. The results showed that the implementation of PSE could improve the teaching ability of pre-service chemistry teachers in FEP. The average score of all participants in all aspects is increased from 60.5 to 82.5.