Horse Halter Training
I am not going to tell you that my way is the right way or the only way to train your horse on halter use. I will tell you that it is best to start them as young as possible. Although a horse of any age can be halter broken; but the older they are, the more time and effort it may take.
As with any training it helps if you have spent some time with the horse to get to know his temperament. If they are not use to people and touch, it is best to start off very slowly. Let them get use to your presence and touch before introducing the halter.
Let the horse become accustomed to the look, feel and smell of the halter and it will make it easier for you to introduce it over the head. Let him smell the halter and get used to it being around. Horses like to have time to become familiar with new things, just like humans or any other animal. Once the horse seems satisfied that the halter is not going to hurt him, slip it on him.
Once you get the halter on, attach the lead rope and lead the horse around. Be patient. You may have to pull and tug a little to get the horse use to following you. After a while, when you feel your horse is comfortable with the halter and lead, take the halter off and put it back on. The more your horse sees that it is not going to injure them and that they can trust you the easier it will be to put it on in the future. It may only take a few times to succeed.