Abstract: On the long term storage of LNG by using vacuum insulation technology in vehicle LNG adiabatic cylinder to achieve energy conservation and emissions reduction requirements,low temperature insulation performance is one of the important basis to measure the comprehensive performance of the product. At present,low temperature performance of the on-board LNG adiabatic cylinder has been detected before the factory,the relevant testing methods and standards have been established in the country,the detection method and the evaluation basis are provided. However,the periodic detection of on-board LNG adiabatic cylinder has always been the short board of the industry,the relevant standards and regulations are not perfect,there exists the security risks. This paper is based on the annual output of the LNG heat insulated cylinder,the quantity of the market,the use of the status quo,analysis of the current periodical detection situation of on-board LNG adiabatic cylinders,put forward regular test methods,judging basis and validation requirments,etc. of the on-board LNG cylinders adiabatic insulation performance.