The parotid gland is the largest salivary gland in the oral cavity and performs the important function of saliva secretion, the parotid gland is located in front of the ear, the old people often say “mumps” is a kind of parotid disease, in addition to parotid tumor is also one of the common diseases of the parotid gland, there is no need to panic if you have parotid tumor, more than 80% of them are benign, the treatment effect is very good, parotid tumor is less than 20%. Malignant tumor of parotid gland is less than 20%. The pathological types of parotid tumors are very complex and diverse, among which benign “pleomorphic adenoma” is the most common, some people also call it “mixed tumor”, malignant mucinous epidermal-like carcinoma and adenoid cystic carcinoma are common. Parotid tumors should be detected and treated early, because even benign tumors will continue to grow larger if left untreated for a long time, which will bring about some irreversible adverse effects and may even become malignant. Most of them are not accompanied by pain and facial palsy symptoms, and generally grow slowly, and the tumor is easy to move in early stage, but in late stage, it can be fixed with surrounding tissues. If the tumor suddenly grows faster, local pain and numbness, or even uncontrolled facial expression (so-called “facial palsy”), we should consider the possibility of tumor malignancy and go to professional hospital immediately for treatment. The treatment of parotid tumor is mostly surgical, and parotid tumor surgery has undergone the evolution of early tumor enucleation, superficial lobectomy of mass and parotid gland and regional gland resection. The long-term outcome has also been fully recognized and has now become a mature procedure. One of the most important issues in parotid surgery is the choice of facial nerve. In most cases, the facial nerve should be dissected and preserved to maintain normal facial function and morphology. Benign tumors can be cured by surgery alone, while malignant tumors can be treated with surgery, but also with adjuvant radiation therapy and systemic chemotherapy.