Aims: This study aims to analyze the accounting for biological assets and the determination of selling prices in the Maju Sejahtera Livestock Production Cooperative (KPT) based on PSAK 69. Study Design: This study uses a qualitative descriptive method to describe how the accounting treatment of biological assets and the determination of the selling price in the Maju Sejahtera Livestock Production Cooperative (KPT) is based on PSAK 69. Place and Duration of Study: Determination of the research location was carried out purposively, namely at the Maju Sejahtera Livestock Production Cooperative, Tanjung Sari District, South Lampung Regency. This research was carried out from February to July 2024. Methodology: The data collection method in this study used semi-structured interviews and literature studies. Respondents were determined using purposive sampling. These criteria are that respondents must be involved in preparing financial reports and determining the selling price of cattle. Based on these criteria, the respondents of this research are the treasurer and marketing department who are members of KPT Maju Sejahtera, totaling 3 people. Meanwhile, secondary data was obtained through the documentation method, namely from the financial report data of KPT Maju Sejahtera. Results: KPT Maju Sejahtera at the end of each period did not require re-measurement of biological assets using fair value. KPT Maju Sejahtera has not grouped biological assets into productive and non-productive groups and has not reconciled changes in biological assets either narratively or quantitatively in presentation in the financial statements. In addition, KPT Maju Sejahtera discloses increases or decreases in the value of biological assets in the inventory account in the Balance Sheet, which should be disclosed in the Income Statement. Conclusion: The accounting treatment of KPT Maju Sejahtera's biological assets is in the form of recognition of biological assets, measurement of biological assets, presentation of biological assets, and mapping of biological assets are not in accordance with PSAK 69. In addition, the selling price set by KPT Maju Sejahtera is based on market prices, not based on costs incurred.