Children between the ages of three and eight have poor cognitive skills, so they are suitable to communicate with machines in a more appropriate way. Through introducing 'without thought' design concept proposed by Naoto Fukasawa and combining the mature and controllable intelligent technology, the toys can be developed with various playing methods. At the same time, in order to realize the commercialization of products, a complete service chain is designed with a supporting app as the connection point, so that it has a feasible business model.Children's cognitive level should be considered more deeply to solve the problem of intelligent application of toys.