The increase in the Bank Indonesia interest rate (BI Rate) has a significant impact on the rupiah exchange rate and global market conditions. When BI decides to raise interest rates, this reflects an effort to control inflation and stabilize the economy. This increase usually attracts foreign investors, because it offers the potential for higher profits in rupiah-denominated financial instruments. The increase in the BI Rate has a direct impact on foreign capital flows. When interest rates increase, investment instruments such as bonds and deposits become more attractive. This creates greater demand for the rupiah, which could strengthen the Indonesian currency’s exchange rate against the US dollar. However, this impact is not always positive. When investors start to withdraw their capital to invest in other markets with higher returns, the exchange rate can be depressed. Another aspect to pay attention to is the short and long term effects of changes in interest rates. In the short term, the market often reacts strongly to an increase in the BI Rate, so that the rupiah exchange rate can increase. However, over time, if inflation remains high or if economic growth is hampered, the exchange rate may weaken again. Furthermore, globalization and world economic uncertainty also play an important role. Rising interest rates in developed countries such as the US could encourage greater capital flows into the US dollar. If the dollar strengthens, the rupiah exchange rate tends to weaken despite the strength of the increase in the BI Rate. This emphasizes the need for macroeconomic stability within the country to deal with external volatility. Technical analysis of forex market conditions shows that when the BI Rate increases, investors tend to buy rupiah, thereby increasing demand. However, traders also consider many other factors, including the trade balance, foreign exchange reserves, and domestic political conditions. All these factors are interrelated and can influence market sentiment. Proper communication from Bank Indonesia regarding its monetary policy can also influence market expectations. When BI clearly reveals its long-term plans and signs that it is ready to maintain higher interest rates, investors will be more stimulated to invest. However, if there is uncertainty, this can cause capital flight and weaken the rupiah’s position. An increase in the BI Rate has the potential to create a conflict between economic growth and controlling inflation. The public and businesses must prepare for the possibility of rising borrowing costs, which could affect consumption and investment. Therefore, it is important for all parties to understand these dynamics in order to adapt to changing policies and fluctuating global conditions.