Background: Lintut leaves (Strobilanthes kalimantanesis) are one of the endemic species that grow in Kalimantan, but research on their bioactive compound content is still limited. Flavonoids and phenolics are known to have various health benefits, such as antioxidant, anti-inflammatory, wound healing, and antimicrobial activities. Objectives: This study aims to determine the total flavonoid and phenolic content in lintut leaf extract as part of efforts to identify the pharmacological potential of this plant. Methodology: Extraction was performed using 96% ethanol solvent using maceration methods, followed by analysis of total flavonoid content using spectrophotometry with aluminum chloride reagent, and total phenolic content using Folin-Ciocalteu reagent. Results:  The results showed that the lintut leaf extract contained total flavonoids of 327.212 ± 2.909 mg QE/g extract and total phenolics of 154.263 ± 0.134 mg GAE/g extract. Brief conclusions:  Both compounds exhibited significant concentrations, indicating that lintut leaves have potential as a natural source of flavonoids and phenolics. These findings provide a solid scientific foundation for further research into the health benefits of lintut leaves, particularly in the context of herbal product development. Further research is needed to explore the pharmacological potential of these compounds.