Patients undergoing elective meningeoma resection surgery will be randomly assigned to one of the following two groups. After anesthesia induction but before skull-pin insertion, one group will receive scalp nerve blocks with 0.5% ropivacaine, whereas the other group will receive scalp nerve blocks with 0.9% saline. The patients' postoperative recovery quality, which is evaluated by KPS score, peri-operative inflammatory responses, and post-operative pain degree will be evaluated and compared between the two groups.

Patients undergoing elective meningeoma resection surgery will be randomly assigned to one of the following two groups. After anesthesia induction but before skull-pin insertion, one group will receive scalp nerve blocks with 0.5% ropivacaine, whereas the other group will receive scalp nerve blocks with 0.9% saline. The patients' KPS scores at 3d after surgery and at discharge, serum levels of TNF-α、IL-6，IL-1β at 24h after surgery, satisfaction score after recovery, and VAS scores at 1, 2, 3 days post-surgery will be evaluated and compared between the two groups.

Inclusion Criteria:

1. 18-75 years old;
2. BMI 18-28 kg/m2;
3. ASA Physical Status 1-2;
4. Clinical diagnosis of primary Meningeoma and will have elective Meningeoma Resection Surgery;
5. With an estimated surgery time of less than 4h;
6. The incision will be conducted at the frontal, top or the temperal skull.

Exclusion Criteria:

1. A history of previous brain surgery;
2. Severe systemic disease (heart, lung, kidney, or immune system);
3. Nerval or mental disorders;
4. A history of addiction to opioids;
5. Allergic to ropivacaine;
6. Infection at block site or severe systemic infection;
7. Refuse to attend the trial.