The article details how the Taobao Live team utilizes Large Language Model (LLM) technology to optimize script generation for digital human live streaming. The core challenge is generating scripts suitable for live broadcast delivery, accurate in information, and possessing a human-like style. The article focuses on two technical practices: First, semantic-aware script rewriting for oral delivery , which uses the DPO algorithm to optimize the model, addressing issues with correctly pronouncing numbers, symbols, and English terms , achieving 97% accuracy. Second, by analyzing human live streaming ASR data, learning colloquial expressions, and introducing a distillation model with a 'thinking process', it effectively reduces the lack of naturalness in the script. Furthermore, the article elaborates on how to integrate integrated customer data (Q&A, reviews, purchase history) , real-time benefits, understanding product detail images , merchant personalized persona, etc., to enrich script content and structure. These technologies collectively enable Taobao Live's more realistic and efficient digital human live streaming.