Conduct preservation of intellectual property for China International Import Expo should give priority to efficiency while giving consideration to equity, establish“fourfactors”standard as well as judge discretion to consider other factors based on individual case. The factor of possibility of success on the merits does not need to be high degree of probability, it needs to prove pending a trial on the merits, the defendant should or should not be restrained from exercising the rights. The possibility of success on the merits and irreparable injury should be inverse proportion, According to the specificity of China International Import Expo, TRIPS and German Regelungsverfügung may be used for reference to affirm injunction based on applicant’s application.