I read this once before and learned from it myself...
Litter Box Training your Yorkie All animals, including humans, excrete biological waste. This means that your dog does it too. Gradually, the act of going to the bathroom becomes more structured and a place is set in which we must travel to in order to do what needs to be done. Your Yorkshire Terrier does the same thing, eventually. For your new Yorkie Puppys, going to the bathroom is going to be tough to monitor and get right. It is important to train your Yorkie puppy so that they know where they can "go", and where they can't. Yorkshire Terriers are smaller dogs compared to most, and more of an inside breed then an outside, of course thats not to say they don't like the outdoors. One of the most popular methods for this tiny dog is litter box training. This method is highly convenient for those people who live in apartments and can not take their dog outside whenever they need to go, which is quite often for Yorkie puppies.
Like all training methods for bathroom usage when dealing with puppies, your going to need to give your Yorkie a special room. This will be his confinement area. Its not a prison, so do not think of it as one, it is simple a training ground that your Yorkie puppy will be spending a lot of time in. This room should probably be a bathroom with tile so that "accidents" are easier to clean. Do not disillusion yourself, your puppy will have accidents, so as soon as you accept that fact the easier it will be. Move all of your dogs toys, his drink bowl, food bowl, sleep area, etc. into the room you have chosen. As stated, Yorkshire Terriers are small dogs, so the litter box that you get does not have to be jumbo size. It should be relatively small, about 3-4 inches in height and about 15-20 inches in length. Its going to be very important for your Yorkie to be able to get in and out of the litter box with ease. You don't want him to have to climb mount Rushmore in order to go to the bathroom. Be sure to place some papers inside the box, as well as under it.
Starting from scratch with litter training can be somewhat difficult. You will be going through much trail and error, so be sure to having your cleaning supplies ready and nearby. If your Yorkshire Terrier is not around you, make sure he is in his "special" room. This is where he will spend his time when your not around. If you are spending time with him, make sure that he is near you and can only go to his room if he needs to go. Make sure all doors are shut, besides his room, and if he tries to "eliminate" near you, shout "No!" and clap. Your Yorkie will be shocked and either stand still, or run to his room quickly. If he stands still, walk up to him and make sure that he sees what he has done. Give him a firm pat to the bottom, just hard enough to let him know somethings wrong, but soft enough so that it doesn't hurt him/her, just make sure he sees what he did, and then bring him to his room. Once you have reached the room, place the puppy in the box, say a keyword or phrase, something like "Poop Box" or "Use Box". When your Yorkie puppy is in the litter box, lift it, place it down, wait for him to leave and repeat three or four more times. Of course this means nothing to a Yorkshire Terrier at first, but they will begin to form a connection as time passes. So each and every time you see him about to leave a "gift" where he isn't suppose to, shout "NO!", make a loud noise (Clap), give him his little rear-end slap (optional, but recommended), and say your box phrase. Once this is done, bring him to the box and repeat the phrase again and again, as well as placing him in the litter box and doing the lift method.
As time goes by, you will notice that your Yorkshire Terrier is going to the bathroom on his/her own. Of course, in their early months your going to have to be with them constantly, but as they get more bladder control and learn where it is appropriate to "go", you will have far less accidents to clean up. Make sure you give your cute little Yorkie plenty of attention and encouragement during this training regimen. If this is your first time litter box training a Yorkie puppy, remember its a learning experience for both of you, so be patient and understanding and you will both get through it with little stress.