The unearthed relics suffer deterioration in some archeology museums of China because of improper preservation environment. To acquire appropriate environmental factors for the conservation of the historical relics

this paper designs the multi-field coupling test chamber orientated to research the quantitative relationship between deterioration and environmental factors(including air temperature and humidity

light

gaseous pollutants

soil moisture and soluble salt).The test chamber is made up of test chamber body

air curtain and air-conditioning system

gaseous pollutants control system

solar radiation simulation system and soil regulation system

which can realize the complex environment of air-relic-soil. This paper focuses on clarifies the test chamber's design index

system composition

as well as implementation and function of each subsystem

and makes performance testing of air temperature and humidity. The experimental result shows that air temperature and humidity is 10-35℃ and 30%-95%

and the accuracy of temperature and relative humidity is ≤1℃ and ≤3%

respectively

which can meet air temperature and relative humidity testing requirements.