In order to summary the notable progresses achieved recently in exploiting alternative natural rubber producing crops and approaches, and evaluate its potential threats to the current natural rubber industry basing on the para rubber tree cultivation. The pressing issues in country level natural rubber supply and producing situation, alternative approaches for nature rubber supply and their progresses were summarized in this paper to arouse the awareness of researchers and policymakers. It was suggested that relevant investigations and researches should be implemented for the alternative rubber producing crops and techniques such as guayule, recombinant Russian dandelion and Eucommia.