The general service life is 5-7 years, and it can be renovated for a long time or a short time according to the scale. Generally, it takes 1.5 years for major renovation, 3 months for renovation and 1 month for minor repairs. The best way is to strengthen daily maintenance, repair, local renovation, planned minor repairs, diligent repairs and diligent innovation, if your hotel can still be used normally for 7 years.