International debt financing is important for the development of emerging economies, as it allows firms from emerging markets (EMs) to have access to greater liquidity, a wider investor base, and more effective laws and regulations. However, the financial crisis in the late 1990s, coupled with recent rapid growth in corporate leverage in emerging markets, have forced policy makers to re-evaluate the risk of offshore financing and its role in EMs’ development. In this paper, we investigate the bonding/signaling effect of offshore financing to those firms in subsequent domestic market financing through the improvement of information disclosure and creditability. With a comprehensive database covering bond issuances by Chinese firms both in domestic and offshore markets over the period of 2010 to 2015, we find that: 1) The offshore bond issuance has a positive bonding/signaling effect on firm’s subsequent debt-raising in the domestic market in terms of longer maturity of corporate issuance and lower funding cost. 2) If the offshore issuance occurs in a stricter jurisdiction providing more effective investor protection and stringent disclosure, or with an international investment-grade rating, it will have a positive influence on firm’s subsequent debt-raising domestically. 3) Offshore debt financing improves the long-term firm performance, especially for financially-constrained companies. Our study presents new evidence for the role of the offshore market in promoting both the domestic institutional environment as well as firm growth, and provides policy implications for developing a broad offshore corporate bond market in emerging economies.