The invention provides a human body respiratory performance parameter detection apparatus comprising an inspiration pipeline, an expiration pipeline, flow meters, a blower, low-temperature sampling bottles, oxygen/carbon dioxide/ammonia gas probes, particle counters, data recorders, and a gas and liquid phase chromatography analysis instrument. According to the invention, the inspiration pipelineand the expiration pipeline are separated, inspiration expiration flow rates of a human body, respiratory flow temperatures and relative humidities, oxygen concentrations, pollutant gas concentrations, and particle concentrations are respectively measured, such that human body respiratory basic performance parameters are obtained. Therefore, a scientific basis is provided for the optimization of air conditioning system novel air delivery and the design of indoor air distribution. Also, a solution is provided for realizing an aim that the air conditioning system is used for serving people's health. Therefore, a purpose of a healthy, energy-saving and sustainable-developing heating, ventilation, and air conditioning system can be achieved.