Abstract: A simulation equipment used for determing the outgassing and contamination property of non metal spacecraft materials has been built recently.It's used to measure Collected Volatile Condensable Materials (CVCM) in a simulated space vacuum environment and will give out all the CVCM data of the entire outgassing measuring process.The stability of temperature control system is ±0 1℃.Measure system consists of 4 QCM.The equipment resolution reaches the 4 4×10 -8 g/cm 2.The main desing is the same as the equipment type of NASA and ESA.So that the test and its data could be compared and exchanged internationally.