Abstract:The usage data of giant tyres in domestic large open pit mine is collected, and the causes of tire damage were analyzed base on the damage type data. TKPH value is a key indicator in tyres model selection and service life prediction. On this basis, the content and process of tyre life cycle management was established. A good effect will be obtained combine with relevant management system. Taking a large open pit uranium mine in Namibian as a study case, the usage status of tyres and maintenance cost composition was analyzed in that mine. And a reasonable cost optimization strategy is proposed meanwhile. The research results show that, abnormal tire body temperature and pressure during haul trucks operation are the main causes in tire damages, which seriously affect the service life of tires. Strengthening tyres life cycle management, and doing a good job in tyres model selection, storage, collocation, installation, use, maintenance and repair are important management tools in declining the damage of tyres, as well as longer usage life of tyres. Using tire amortization cost per tonnage ore/rock Ca and consumption cost per tonnage kilometers Cb as the indicators for performance appraisal in that mine. The Ca can reflect the proportion of tyres cost occupy in mining. In case study mine, the Ca is 0.7 RMB, take a 5%~6% proportion of mining cost. The Cb is 0.276 RMB, this indicator can reflect the tyres management level and taken as reference for tyres usage quantity forecast.