There’s a couple of different ways to serve, so let’s take a look.

There are 2 methods (high serve and low serve), depending on where you want the shuttlecock to land. There are certain rules that you must follow when serving however. Checkout the Badminton service fouls to before playing.
Why is a good Badminton serve so important?

A weak serve often creates a chance for your opponent to execute an attacking shot. Therefore it’s important to know how to serve well so you’ll not lose a point after making a service.
The high Badminton serve

This type of serve is usually executed when you want the shuttle to land at the back end of the court. In a good high serve, the shuttle drops steeply downwards at the back end of the court. A high serve will prevent your opponent from executing a strong smash. Instead, a lob or a drop is more expected from your opponent (unless they can do a jump smash, so watch out). Try to serve the shuttlecock to your opponent’s backhand area. The objective is to force your opponent to use his backhand. Because most badminton players, even world class player, have weaker backhands (compared to their forehands) high serve trajectory badminton high serve location.

This will force your opponent to use the backhand and hence there’s a higher chance of a return weak shot. If your hit it to your opponent’s backhand area, but he/she refuses to use the backhand, he will then have to move further away from his base! This gives you the chance to exploit an opportunity to control the game if your opponent does not have good badminton footwork.
How to execute the high serve

Hold the head of the shuttlecock with its head facing downwards so that the shuttlecock will drop straight down. Stand sideways (the side of your body facing the net) and relax your racquet arm. Let go of the shuttlecock and swing your racquet arm upwards. As you do this, twist your waist to the extent that your body faces the net. Flick your wrist towards the direction you want the shuttle to land (Flick your wrist upwards, so that the shuttlecock will fly high). Your back leg should lift up naturally (with your toes touching the ground). The high serve is useful against opponents who cannot perform strong smashes from the back of the court. However, some badminton players (especially taller players) can execute powerful smashes even from the back of the court (usually with a jumping smash). If this is the case, consider using the low serve instead. So be sure to try to study the other players’ style. This is also the reason why professional players nowadays prefer using the low serve.
How to “smash” the low Badminton serve

The low serve is used when you want the shuttlecock to land in front of the court (in front of your opponent). A well played low serve will have the shuttlecock flying just over the net. If not, your opponent will have the chance to dash forward and smash the shuttle down to you. A low serve, when done right, prevents your opponents from making an offensive shot. Unlike the high serve, you can let the shuttle drop anywhere in front (forehand area or backhand area of your opponent) Neither makes a difference because it does not disrupt your opponent’s footwork.

Hold the feather of the shuttlecock with the head of the shuttlecock facing downwards. Position the racquet behind the shuttlecock. Step slightly forward with your right (left) leg if you are right handed (left handed). As you let go of the shuttlecock, flick your racquet lightly while pushing your thumb forward towards the direction you want the shuttle to land. The power comes mainly from the push of your thumb and the slight flick of your wrist.
The flick serve or the “fake” low serve

The “fake” low Badminton serve can also be used to trick your opponent (deceive your opponent to expect a low serve). When you stand in a low serve position, your opponent would probably expect a low serve. However, push your thumb and flick your wrist harder so the shuttlecock flies high and goes to the back of the court. Well, knowing how to serve is one thing. Practising is another. If you want to make perfect serves, keep practising until you don’t make any mistakes, ace!