Education plays an important role in one's life if the right education and right environment is not provided then it somewhat distract the person from his/her path. In this regard, fuzzy expert system known as SPACS (Students' Performance Analysis and Counselling System) is designed which helps to analyze the students' academic performance by identifying all the critical factors and counsels him/her against those affecting parameters. In this paper, the study highlights on the critical factors that degrades the academic performance of the student based on the some interesting relationships between those factors. The performance of the overall system depends on the accuracy of the fuzzy knowledge base. Hence, association rule mining technique helps to generate the accurate results and also decreases the complexity of the system. General TermsData mining, Expert System, quality education, academic performance, and fuzzy rule based expert system.