Bichon Frize can usually start to understand words when it is about 6 months old. However, Bichon Frize is relatively naughty and has poor obedience at the beginning, so even if it understands words, it may not necessarily obey. It needs to be done when the dog is 1 to 3 years old. Only then will he gradually become obedient and obedient. It is best to train the Bichon Frize from an early age, which can strengthen the dog's obedience and provide clear rewards and punishments. If the dog is disobedient, discipline it in time to prevent the dog from developing bad habits.