The macd of two lines should be a double-line MACD indicator. The MT4 platform was launched together with MACD. But people generally use double-line MACD.

Download the double-line MACD installation package (if the foreign exchange Chinese service provider Tonghui International Baidu doesn't have it), and put "double-line MACD.mq4" and "double-line MACD.ex4" into the expert's "indicators" subfolder in the MT4 folder.

Open the MT4 software, and then in the "Insert" option, select "Technical Indicators"->; "customize"-> "double-line MACD technical indicators", you can successfully call the double-line MACD indicators of MT4.

Remarks: MACD, which means smma with similarities and differences, is an important reference method for many foreign exchange traders, stock traders and futures traders to judge the future trend. It mainly uses long-term and short-term smooth average lines to calculate the difference between them as the basis for judging market transactions.