I have lost my master key to my 97 Toyota Camry. It has anti-theft and immobilizer. how do I resolve the problem

go to a Toyota dealer and get a new one made.

^ What Airjer said. If you have an immobilizer and anti-theft you miust have the XLE model. When you go to the dealership have your VIN handy and proof of ownership; most dealerships will ask for proof of ownership before they will make you a key from the VIN. They will make you a key and then they will have to program it to your car. It won't be cheap and prices will vary from dealership to dealership, so make a few calls to dealerships around you. You need to ask about the price of the key and the price to program it.

Mike