Application Expert Advisor (EA) is used by traders to trade forex online, by utilizing Frame Work Meta Trader 4 (MT4) and programming languages Meta Quotes Language 4 (MQL4), which aims to produce a trading robot that generates enough profit optimal value . These applications can be connected to a wide variety of types of frame work broker which traders. By utilizing the expert advisor application is expected trader can obtain a type of trading robot that can generate enough profit optimal value, in order to make long term investments without involving a lot of people, it can be done anytime and anywhere that important applications such expert is always connected to the internet. This application is built using the programming Meta Quotes Language 4 Frame Work populous in the Meta Trader 4, then to the database directly connected to a server that is in the frame work of its Meta Trader 4. With the Application Expert Advisor there are some things that can be accomplished one of them as the trading activities with achieving optimal profit targets, with the setting on a working system functions such as changing the trading robot Take Profit, Stop Loss, Currency, Time Frame and others. Trader can trade using a PDA, PC, Laptop, and Note Book.