This paper studies bargaining power allocation and stable matching between venture capitalists and entrepreneurs with double-sided moral hazard in venture capital markets. We find that the optimal bargaining power allocation is determined by the output elasticities of effort by the two parties; the higher the output elasticity for one's effort, the greater her bargaining power. We show that efficient and stable matching follows the principle of positive assortative matching, suggesting that strong entrepreneurs/VCs match with strong partners, and weak ones match with weak counterparts. Using a large sample from the Chinese venture capital market, we empirically confirm that entrepreneurs and VCs with similar standing in their peer groups are more likely to match.