Pulmonary liquid/dry powder metered dose inhaler is a device that can directly and accurately nebulize metered samples into aerosol in trachea of rodents to realize quantitative drug delivery in lungs. The operation table is for fixing rats and mice to perform operations at multiple positions to improve efficiency. The rodent laryngoscope can be easily and quickly inserted into mouth and trachea of mice with little harm, insertion depth can be controlled. It is applied to quantitative drug delivery in lungs of mice, rats and guinea pigs.