The article is devoted to the analysis of the principle of equal access to evidence in the context of Russian competition law, considering it as an industry procedural principle. The article reveals the importance of this principle for ensuring fairness and equality of the parties in antitrust proceedings. Special attention is paid to issues related to the access of the Federal Antimonopoly Service (FAS Russia) to information, including restrictions on access to bank secrecy and materials containing state secrets. Measures aimed at protecting information with limited access and ensuring compliance with legal norms in the process of antimonopoly investigations are also being considered. The article highlights the importance of maintaining a balance between protecting confidential data and ensuring the rights of participants in the process.