Bronchiectasis dietary contraindications are as follows: 1, avoid the intake of spicy stimulating food, can stimulate the tracheal mucosa, resulting in mucosal congestion, edema, a situation can cause the tracheal mucosa channel is not open, sputum is difficult to discharge, triggering bronchial blockage; 2, prohibit the consumption of allergic food, such as some patients are allergic to certain foods, after consumption can appear congestion, edema, try to avoid eating; 3, pay attention to quit smoking, the Smoking is more damaging to the lung; 4, bronchial expansion of autoimmune function is more critical, immunocompromised patients due to long-term infection can cause a decline in body mass, wasting, impaired immune function, it is recommended to eat more high-protein, high-energy, easy to absorb food to ensure energy supply.