As a result, our study demonstrated that acupuncture notably improved the implantation sites' number, endometrial receptivity factors including endometrial morphology, pinopodes, HOX-10, and LIF protein expression, as well as angiogenesis and PI3K/AKT pathway factors such as VEGF, VEGFR2, Ang-1, PI3K, AKT, P-AKT gene/protein expression, and the level of eNOS and NO in the endometrium of rats with PCOS; PCOS-like symptoms were alleviated as well. Here, LIF is linked to polycystic ovary syndrome.