According to official statistics, by 2018, China's foreign direct investment had exceeded 143 billion USD, accounting for 14.1% of the global total investment, becoming the world's second largest foreign investor after the United States. In 2018, China's direct investment flow to the five Central Asian countries was US $66746 million. As part of the "the Belt and Road" construction strategy, investment cooperation between China and the five Central Asian countries has opened up new development opportunities. Following the "one road" has opened a new stage of China's investment. Studying the influencing factors of China's investment in the five Central Asian countries in the context of the "the Belt and Road", deeply analyzing the current situation of China's investment in the five Central Asian countries, and finding out the existing problems and influencing factors can not only deepen the understanding of China's investment in the five Central Asian countries, but also provide effective guidance for China's future investment in the five Central Asian countries to a certain extent, contribute to the continuous improvement of the investment environment in the five Central Asian countries and attract better investment, Stimulate economic development. This has provided useful guidance for investment among other countries under the framework of the "the Belt and Road". This paper analyzes the current situation of China's investment in the Central Asian countries from the aspects of scale, industrial distribution and main body, summarizes the characteristics of China's investment in the five Central Asian countries, and analyzes the problems existing in China's investment in the five Central Asian countries. Finally, I sincerely hope that the empirical analysis will provide useful information for China's investment in the five Central Asian countries and further promote the investment cooperation between China and the five Central Asian countries