The internet has facilitated the creation of a new commodity/asset in digital form that can be traded or invested in, this new asset is known as a Crypto Asset. As an asset, crypto is used as an object of collateral in Indonesia based on collateral law and banking prudential principles. Crypto assets are a collateral object with a risk of fluctuation based on collateral law in Indonesia and banks apply the banking principle of prudence towards crypto assets. The research method used is the doctrinal research method. Based on the analysis, crypto assets meet the material legal requirements as collateral objects based on Article 499 of the Civil Code. In the context of collateral, Crypto Assets can be pledged by making a contract. Crypto assets can also be objects of fiduciary collateral, with control of the objects remaining with the debtor. Crypto assets can legally be pledged as collateral, but in legal facts Crypto Assets do not qualify as good primary collateral (collateral) according to the Bank. This is based on an assessment in terms of economic aspects carried out by the Bank as a form of implementing the Bank's Prudential Principle, that the bank assesses crypto assets as having a fluctuating value (price), making it an object of collateral that cannot cover risks in the event of bad credit.