The postgraduate entrance examination can use Zhou Shixun's quantum mechanics, Su's quantum mechanics and Zeng's quantum mechanics. According to relevant contents, the inquiry shows that Zhou Shixun's Quantum Mechanics, an introductory textbook, is easy to understand, and every word should be understood. Su's quantum mechanics, Su is a student of Zhou Shixun, and the two textbooks have the same style, focusing on understanding. Quantum Mechanics by Zeng Jinyan is not suitable for beginners because of its great leap in content and reasoning, but the quality of exercises after class is good.