Does the guarantee company have the right to conduct on-site investigation?

Have the right. If it causes serious overdue, the guarantee company will take measures such as on-site investigation and even prosecution. The specific situation needs to be specific.

Legal basis: Article 186 of the General Principles of the Civil Law of People's Republic of China (PRC) * * * If one party breaches the contract and damages the other party's personal rights and property rights, the injured party has the right to choose to require it to bear the liability for breach of contract or tort.