Knowledge is one of the main assets for business entities including but not limited to start-ups or research institutions, they are investing in to it and there is a need to protect it. Keeping it as a trade secret is one of the main options for protecting it. For achieving work goals at first the ambiguity of trade secrets is described, their relation to intellectual property is researched in order to determine essential features why trade secrets are not considered as intellectual property rights. The main object of this work – trade secrets protection specifics, are analysed in three matters: at first, it is analysed from the Republic of Lithuania (LR) legislation protection aspect. Main legislation (Civil code, Labour code, the Law of C...