Beliefs in conspiracy theories depend on the type of trust. Trust in the government and trust in the general public weaken conspiracy beliefs, whereas trust in SNS strengthens them. It can be inferred that conspiracy theories spread online and that online trust is contrary to the offline trust structure. Correlation coefficients of trust in the government is the largest, indicating the importance of the government’s role in handling the COVID-19 pandemic. Among the political variables, support for Moon’s government and trust in the government have large correlation coefficients, which also indicate that the government plays a significant role in a pandemic.