The research aimed at evaluating the Islamic education learning outcome assessment system of deaf children in SMALB (High Schools for students with disabilities) level at SLB (Schools for students with disabilities) N I Bantul from the context, input, process, and product. The type of the research was evaluative through CIPP model by using sequential exploratory mixed method. The subject of the research was the PAI (Islamic education) teachers of the deaf department in SMALB level, 7 students from grade X, XI, and XII of the deaf department, and the Principal of SLB N I Bantul as the key informant. The data collecting techniques used were observation, interview, and documentary study. The data analysis technique was conducted through data reduction, data presentation, and conclusion drawing. The research result indicated that: (1) context evaluation was entirely good enough. However, the socialization of the assessment system needed to be conducted; (2) input evaluation was entirely good enough. However, each student needed textbooks; (3) process evaluation was entirely good enough. However, there were several things in planning and implementationthat needed to be improved; (4) product evaluation was entirely satisfying.