Singapore has just imported a mental commit robot psychological enrichment.Paro is modeled after a baby harp seal,Paro is also covered with soft artificial fur to make people feel comfortable, as if they are touching a real animal. .Many studies show that interaction with animals is useful for people to relax, relieve mental stress, and exercise for physical rehabilitation.Most hospitals and nursing homes do not accept animals because of allergies, infections, bites and scratches they can cause. In some places, it is not allowed for people to take care of animals in an apartment. Moreover, some people who live alone have difficulty taking care of their pets by themselves.And hence they develop paro.Paro has been developed since 1993 for those who cannot take care of real animals and those who live in places where pet-animals are forbidden.Paro has five kinds of sensors: tactile, light, audition, temperature, and posture sensors, with which it can perceive people and its environment. With the light sensor, Paro can recognize light and dark. He feels being stroked and beaten by tactile sensor, or being held by the posture sensor. Paro can also recognize the direction of voice and words such as its name, greetings, and praise with its audio sensor. Paro can learn to behave in a way that the user prefers, and to respond to its new name.