The objective of this thesis is to appoint and control the fire resistance cable design and production system by using Fault Tree Analysis (FTA) and Failure Mode and Effects Analysis (FMEA) as the main quality tools. First of all, conclusion of any problem makes the customer’s dissatisfaction by using quality tools to study the quality factors such as Brain Storming, Relation Diagram and Metrix Diagram. After that use FTA and FMEA analyse the detail and the completely collection of all failure. From both technics found that many failure were be consistent. The amount of failure from FMEA are more than and cover all of failure from FTA. There fore, the improvement will according FMEA as the main. The detail of FMEA is setting the professor to evaluate the Risk Priority Number (RPN) of each problem by considering about the Severity, Occurrence and Detection. The highest RPN of problem means that the problem is easy to failure. The value of RPN is normally between 1 to 1,000 points. This thesis mainly concentrates on the correction of defects which is more than 100 points. The alternatives of solving are setting the work standardization, document control system, fool proved tools, check sheet, setting detail and condition of machine. After the corrective action was done, the professor had evaluated the RPN again. The new RPN after action decreased very fast. All of RPN are lower than 100 points. The other advantage from this action is that the sample factory has the photo-type of product (fire resistance cable) which has the properties corresponding to customer requirement, receive the confirmation from the international institute and the cost of new photo-type is lower than one before the improvement. The procedure of design process was established to make sure that the defective of design system did not occur again and QC Process Chart was setting for processing control.