Lung infection after esophageal cancer surgery can be treated by general treatment and drug anti-infection treatment. 1. General treatment: lung infection after esophageal cancer surgery is a common complication, mild lung infection is characterized by cough and sputum, etc. Patients should take bed rest, keep the air in the room fresh, supplement water and strengthen nutrition to promote recovery. 2. Drug anti-infection treatment: patients with moderate and severe lung infection should be hospitalized. The main symptoms of moderate and severe lung infection are fever, chills, shortness of breath, chest pain, etc. First of all, antibiotics should be used for treatment, such as cefoperazone, ceftriaxone sodium, etc., supplemented with sputum removing drugs (such as aminobromine, bromhexine, etc.). After esophageal cancer surgery, patients often have difficulty in swallowing, patients should eat less and more meals, provide high-energy nutritious food, mainly soft food and diluted food, and forbid spicy and stimulating food. Lung infection after esophageal cancer surgery can lead to lung abscess, sepsis and other critical diseases if not treated timely and correctly. It is suggested that patients should seek medical treatment immediately and under the guidance of doctors, and must not be negligent so as not to delay the condition.