The extant literature suggests that entrepreneurial speed is the antecedent to new venture creation．However，there is little knowledge about the antecedents to entrepreneurial speed．This paper addressed the relationship between entrepreneurs’affiliation of prior experience and entrepreneurial speed，as well as the moderation effects of marketization and the affiliation of mobilized network contacts．The results showed that both prior experiences embedded in planned and market system could promote the entrepreneurial speed．Furthermore，in the context of higher marketization，the positive relationship between prior experience affiliated by planned system and entrepreneurial speed is higher than the context of lower marketization．And entrepreneur from market system could promote the entrepreneurial speed by mobilizing the network contact embedded in planned system．The results provide significant implications to the research on entrepreneurial behavior，entrepreneurial management and policy making．