Placenta praevia is a phenomenon in which the placenta adheres to the lower segment of the uterus, and even the lower edge of the placenta reaches the endocervical os or even completely covers it, and it occurs most often in women of advanced maternal age and multiple births, and the patients usually have the symptom of recurring vaginal bleeding without any causative factors and painlessly, which has a great impact on the safety of the mothers as well as perinatally born infants [1-2] Therefore, effective nursing care is particularly important for the improvement of the condition of patients with vaginal bleeding from placenta praevia. Therefore, effective nursing care is particularly important to improve the condition of patients with placenta praevia. In this study, scientific and effective nursing methods were adopted for the patients with placenta previa vaginal bleeding, and the nursing effect is good, reported as follows. I. Observation and Nursing Care The contractions were monitored and recorded by the medical staff through the electronic fetal monitor in the admitted cases. Two contractions ≥2 times/10min, intensity ≥30mmHg, duration ≥30s were regarded as strong; contractions <2 times/10min, intensity <30mmHg, duration <30s were regarded as weak. The amount of vaginal bleeding was estimated by weighing method and recorded. The amount of >80ml was regarded as large, 20-80ml as medium, and <20ml as small. Administer magnesium sulfate 7.5~25g/d, or add salbutamol 7.2~14.4mg, or hydroxybenzylhydroxyephedrine 50~150/d as prescribed by the doctor to inhibit the contraction of the uterus. When applying drugs to patients, it is necessary not only to ensure the correct and effective input of drugs, but also to prevent the occurrence of adverse drug reactions. At the same time, the patient's blood magnesium level is regularly tested to prevent magnesium poisoning. Nursing methods Bed rest: patients should be placed in the left lateral position for absolute bed rest to reduce uterine contraction and uterine blood flow. The patient's ward should be kept quiet and comfortable, and good light exposure, conducive to the patient's rest. Keep the bowels unobstructed: patients who have been bedridden for a long time are prone to constipation, which leads to uterine contraction. During the period of bed rest, the patient should have a balanced diet, drink more boiled water, eat more foods rich in fiber, and have regular bowel movements. Keep the vulva clean: during the period of vaginal bleeding in patients with placenta praevia, the clinical nursing staff will disinfect the patient 2 times/d and use disinfected perineal pads, if the patient's bleeding is large or prolonged, antibiotics should be applied to the patient in time to prevent infection. Avoid adverse stimulation: when the clinical nursing care is listening to the sound of the fetus for the patient, the movement should be slight, in order to reduce the stimulation of the patient's abdomen. Keep the infusion tube unobstructed: when the vagina of the patient with placenta praevia bleeds a lot, blood transfusion should be carried out in time to prevent the patient from having adverse reactions due to blood loss. In the establishment of infusion pipeline, 2 venous channels should be used to guarantee the smoothness of infusion pipeline and the effectiveness of medicine and blood input. Psychological care: due to recurrent bleeding without cause or pain, patients with vaginal bleeding from placenta previa often feel nervous, fearful and anxious, worrying that their lives and the fetus will be in danger. In this regard, clinical caregivers should strengthen the education of relevant nursing safety knowledge for patients and eliminate their bad emotions. This can prevent patients from contractions due to adverse emotions, triggering an increase in vaginal bleeding. Conclusion: Placenta praevia is one of the common complications in pregnancy. In late pregnancy, the lower segment of the uterus will stretch to pull the endocervical os, and the placenta can not stretch in synchronization with it, so it can not attach to the endocervical os and lead to vaginal bleeding, and the cause of its origin has not been clarified in the clinic, and it may be related to the endometrial pathology, excessive placental area, delayed development of fertilized eggs, placental abnormalities and other factors, and the patient will be painless. repeated bleeding and even shock as a result [3]. Prompt first aid and effective care after vaginal bleeding in patients with anterior placenta are widely recognized in clinical practice. After the patient's vaginal bleeding, clinicians should carry out a series of comprehensive nursing care such as effective basic, cleaning, diet, psychological care, etc., which has a great role in promoting the patient's psychological and physical aspects, and at the same time, closely observe the patient's contractions and vaginal bleeding, and take timely and effective measures for the patient when the patient's vital signs are abnormal, so as to improve the patient's condition and achieve the purpose of nursing care [4]. study showed that 73.7% of patients with vaginal bleeding were accompanied by contractions, and most of the patients with vaginal bleeding did not have significant abdominal pain, but had uterine contractions. The effective rate of vaginal bleeding in patients with placenta praevia was 86.0%, indicating that effective nursing methods have a great contribution to the improvement of patients' conditions. In conclusion, for patients with vaginal bleeding of placenta praevia, the use of scientific and effective nursing methods can effectively improve the condition of the patients and enable them to recover their health as soon as possible, which has a high clinical value and is worth recommending clinically.