As Chinese toy expert Zhuang Zhensheng says, all that children can play , watch , listen and touch can be called toys. Toys are not only for children, but for youths and the elderly.

Plekhanov, a Russian philosopher, believe that game is the product of labor and labor must precede the game in time.

British philosopher Herbert Spencer believes that after the completion of the human major maintenance and continuation, human still have surplus energy, and the remaining energy release is just game, which does not has utilitarian purposes.

A German biologist points out that the game is not an activity without purpose, or an activity unrelated to practical life, but prepare for future real life.

Beijing World Toy Museum think that toys are both tools for children to play and learn and devices for the whole people recreation, developing intelligence and inspiring ability. Meanwhile, the toys also reflect the highest achievements of human civilization for the specific age. Children's toys are tools that human make for later periods to grow up healthily, to understand the world of their lives, and to learn how to manage the world , to conquer the world , and build a better world. Meanwhile, the toy is also equipment that embodies the concept of human education. If we give a definition of toys, we can say that toys are not only the outcome of human understanding of the world in the past, the real world, the construction of the new world, but also utensils of concretion, visualization, simplification, popularization. A toy history is the history of social development in the eyes of children.