Science process skills are very important to be developed in science learning because helps students develop their thoughts to make discoveries, therefore they can be assisted using scientific concepts. Science process skills become the provisions of students to develop and obtain new knowledge or knowledge they already have. Science process skills are divided into two namely basic process skills and integrated process skills. This study aims to describe the science process skills of fourth-grade primary school students which amounts to 29. This study only examines students' basic process skills which include observing, making hypotheses, planning experiments, conducting experiments and interpreting data.This type of research was qualitative research using data collection techniques, namely observations, interviews, and tests. Observations and interviews were conducted with teachers and fourth-grade students. The form of the test given is a multiple choice test to measure students' science process skills. Data analysis was performed using the analysis interactive model. The results of the study show that students achieve aspects observing 43%, aspects of making hypotheses by 62%, experimenting aspects by 34.5%, aspects of conducting experiments by 48%, and aspects of interpreting data by 19% are complete. Based on the results of the research shown in this process, fourth grade students are still relatively low.