The development level and the composition of intraindustry trade are an important standard to measure industrial international trade competitiveness of a country. In order to evaluate the competence of China’s textile and apparel industries exactly, this paper makes an empirical analysis of the situation of China’s textile and apparel (T&A) intraindustry trade. The results indicate that the overall level of intraindustry trade development on China’s T&A industries is slow and low while the intraindustry international competence of China’s T&A is increasing, that the style of trade on China’s T&A industries is mainly taken by interindustry trade, that the intraindustry trade level and industrial competence of each subproduct of textile industry are not the same and its trade is chiefly taken by vertical intraindustry trade, among which the competence of textile material products is weak and intraindustry trade degree is relatively high, that the products like apparel have obvious and steady comparative advantage but their intraindustry trade level is low and that textile mechanical products have feeble competence and their intraindustry trade level is also low but demonstrates the trend of rise. Finally several suggestions for the development of intraindustry trade of China’s T&A industry are forwarded.