First of all, investors need to understand that adding positions must be done when they are profitable, and will never be added when they are losing money. The purpose of using it is to obtain returns with less risk in foreign exchange investment transactions, so it is valuable only when adding or subtracting positions can help investors achieve their income goals. Generally, the operation skills of adding positions are more suitable for short and mid-term investors and are suitable for larger funds. The method of adding positions is generally a pyramid type. For example, when going long, investors buy a part at the bottom, which is 100 lots. When the market reaches a certain position, they buy another 80 lots. As the market rises, they buy another 60 lots, and so on. And so on. In this way, the number of low-level purchases is greater than that of high-level purchases, which can ensure that investors' holding costs are lower than the market average price. When the market is about to turn around, you can close out as quickly as possible once or twice. The advantage of adding positions in a positive pyramid is that the entire profit can be maintained relatively continuously; adding positions itself is a relatively radical method, and this layer-by-layer reduction method can be alleviated. Secondly, before adding a position each time, you should ensure that the previous opening of the foreign exchange transaction and the order for adding a position have been profitable before adding a position. And each additional position should not be larger than the previously opened position. It is particularly emphasized that investors should pay attention to the fact that the first opening position is larger than the first opening position. In most cases, it is recommended that the number of consecutive increases is generally no more than 3 times. Finally, if the market trend is not clear enough, investors should not easily use foreign exchange to increase or decrease positions. It can generally be used when the fundamentals in foreign exchange transactions support the currency moving out of a unilateral trend. If used in a volatile situation or during a reversal, the gain will outweigh the loss. Therefore, before investors decide to use this technique, they can do it based on being able to judge the market trend. Investors must understand and be familiar with the foreign exchange varieties they operate, and their mentality changes at each stage of the currency must be stable and calm. It is not recommended to use it when investors are unfamiliar with and unsure of the market trend.