This study selects data from 2004 to 2009 of the listed companies in SME board as mixed samples to research the relationship between board characteristics and firm's growth. Calculate the composite index - the composite score of firm's growth to evaluate the firm's growth by factor analysis, and create a multiple regression model to make empirical analysis for the relationship between board characteristics and growth of listed companies in SME board. We find that board holdings proportion and board remuneration level have a significant positive impact on the growth of listed companies in SME board.