Despite of the reliable analysis method, the importance of backward balance (Kokutsu Detchi ) and what result of performance quality or debase , but according to researcher’s knowledge and through his study of many researches it have not been studied separately. Therefore the current study aims at the qualitative analysis of backward balance performances fault as a support base for defence for (Kata Heian) group in karate sport, research questions, what the rate of backward balance spreading? What is the rate and order of fault when teaching backward balance posture? .the researcher used the descriptive approach (case study) using qualitative analysis, research sample includes second class players (22 karate players) it was chosen intentionally from the professionals in Kata Heian group, data collection tools, content analysis used to counting the spreading of backward balance, kinetic analysis to identify performance fault, percentage and standard fault. The main results for the preliminary stage the effect of its fault was 4.6 degree, the main stage 4.4 degree and the final stage has the greatest effect 5 degrees, recommendations , concerning with the accurate performance as a basic influence to avoid the fault , offering the coordinative exercises when preparing for backward balance teaching: