Recently, I’ve noticed many beginners asking how to draw trend lines. In fact, this is one of the most practical tools in technical analysis. Instead of getting caught up in all kinds of complicated indicators, it’s better to master trend lines and use a good trend line drawing app; your trading ideas will become much clearer.

My own judgment system is centered around trend lines. Simply put, a trend line is a straight line connecting either the lows or the highs of the price, used to determine whether the market is rising, falling, or sideways. It looks simple, but when used correctly, it can help you find excellent buy and sell points.

The upward trend line is the easiest to understand. When the lows keep getting higher, connecting these lows creates an upward-sloping line. I saw the GBPUSD four-hour chart in March 2018, starting to rise from March 1st, then pushing higher again on March 9th. The two continuously rising lows form a clear upward trend line. The key is, every time the price retraces to this line, it gets supported—that’s your buy point. Once the price breaks below this line, the trend may be changing.

The downward trend line works the opposite way. When the highs keep getting lower, connecting these highs forms a downtrend line. The GBPUSD movement at the end of January 2018 is very typical: starting to fall from January 25th, then dropping again on February 2nd, with highs gradually decreasing. After the downtrend line forms, every retracement to this line gets suppressed. That’s your sell point.

The most powerful aspect of trend lines is identifying trend reversals. I’ve seen many times where, in a bearish market, the price suddenly breaks above the trend line strongly, turning that line into support and signaling a bullish start. Conversely, in a bullish market, if the price breaks below the trend line, it indicates a shift to a bearish trend. The historical movements of GBPUSD and EURUSD have validated this logic.

Practical skills are very important. In an uptrend, the trend line itself is a natural support level and also a potential entry point for bears. The EURUSD movement in late February 2020 demonstrates this principle: after multiple touches, the trend line supported the price to continue rising. In a downtrend, the trend line acts as a natural resistance level, where bears repeatedly enter.

Another concept is the trend channel, which uses two parallel trend lines to form a channel. In an uptrend, the upper line is resistance, the lower line is support, and price oscillating within the channel indicates bullishness. In a downtrend, it’s the opposite. If the price breaks out of the channel boundaries, it usually signals an acceleration or reversal of the trend.

Regarding trend line drawing apps, I’ve used TradingView the most. Its candlestick chart features are highly professional, with comprehensive drawing tools. Many mainstream exchanges and platforms use its charts for technical analysis. If you want to draw and trade simultaneously, MetaTrader 4 or MetaTrader 5 are also good options, offering full features and rich indicators, suitable for traders who want deeper analysis.

My advice is, instead of blindly relying on indicators, spend time practicing drawing trend lines. Find a user-friendly trend line app, repeatedly practice on historical charts, and you’ll discover that many buy and sell opportunities are hidden in trend line breakouts and supports. After many years of using this method, I still find it the most reliable.