This paper studies the impact of official visits on bond issuance spreads based on the data of official visits from listed company websites. Official visits, as an informal institution, will reduce bond issuance spreads, and the relationship is more significant in non-state-owned enterprises, enterprises with no political connections, and enterprises with high information opacity. In addition, factors including the rank of official visits, continuous official visits, and non-local official visits will also affect this relationship. The study also finds a regional spillover effect of official visits. This paper reveals the mechanism of informal institutions in the bond market, which has practical significance for understanding the guiding role of current official visits in China and the effectiveness of financial services for the real economy.