Based on ShanghaiRanking's 2019 Academic Ranking of World Universities and Global Ranking of Academic Subjects, this paper performed a statistical analysis on the number of Global Ranking Academic Subjects owned by world-class universities and the distribution of the Subjects in various universities and disciplines. Statistics show that world-class universities usually have more world-class subjects in multiple disciplines; Most of the world-class disciplines are distributed in world-class universities. In recent years, China's universities have made remarkable progress in both the academic rankings of world universities and the world-class disciplines. On the whole, there are more universities with world-class disciplines in China, but fewer world-class universities; The number of world-class disciplines owned by China's world-class universities has certain advantage, but the distribution of disciplines is uneven, and the world-class disciplines are mainly concentrated in the field of engineering. To further construct “Double First Class,” we should adjust the relationship between first-class university construction and first-class discipline construction, strengthen the balance of discipline development, and move from focusing on the construction of research group of first-class disciplines to paying more attention to the comprehensive competence construction of universities.