Inclusion Criteria:  Consent to participate in this clinical trial and sign an informed consent form. Age ≤40 years, regular menstrual cycle between 21and 35 days in length. Meet the Western diagnostic criteria for DOR. Meet the criteria for identifying kidney deficiency in Chinese medicine. Planning to undergo IVF-ET for pregnancy.  Exclusion Criteria:  History of two or more previous spontaneous abortions (excluding biochemical pregnancy abortions) or three or more previous ETs without obtaining a clinical pregnancy. Premature ovarian failure or ovarian gonadotropin resistance syndrome. Untreated uterine anomalies or abnormalities, including double uterus or longitudinal uterus (complete or incomplete). Untreated hydrocele on one or both fallopian tubes (confirmed by hysterosalpingography). Uterine adhesions, endometriosis, adenomyosis, endometrial lesions (submucosal fibroids, endometrial polyps, etc.), or uterine fibroids >4 cm. Endocrine disorder affecting ovulation, such as polycystic ovary syndrome, hyperprolactinaemia, hyperandrogenaemia, hypothyroidism, or adrenal abnormalities. Infertility with abnormal ovarian function due to immune factors, genetic factors, or congenital physical defects. Previous pelvic radiotherapy. Known or suspected sex hormone-related malignancy. Allergy to or intolerance of the drugs used in the study. Combined contraindications to assisted reproductive technology or pregnancy, such as uncontrolled abnormalities of liver and kidney function, diabetes mellitus (glycosylated haemoglobin ≤7%, fasting blood glucose <10 mmol/L ), hypertension, thyroid disease, symptomatic heart disease, moderate to severe anaemia, history of malignancy or thromboembolism or propensity to thrombosis, severe psychiatric disorder, acute infections of the genitourinary system, sexually transmitted diseases, serious adverse habits such as drug abuse, exposure to teratogenic amounts of radiation, toxins, or drugs (such as prednisone or other hormones, adrenaline, antibiotics, or hypertension, cardiovascular, or antiviral medications) during the active procedure period , and uterine factor infertility or physical illness which prevents the ability to bear a pregnancy.