Child development involves a number of important aspects, including learning and creativity. Effective education at an early age plays an important role in establishing the foundation of knowledge, skills and attitudes that will help children grow and develop well. In this context, the role of toys as a learning tool and stimulation of creativity in children cannot be ignored. Toys are important tools that are not only fun for children, but also play a role in their cognitive, social, physical and emotional development. In playing, children have the opportunity to explore the world around them, interact with other people. aims to investigate the role of lego toys in increasing children's creativity and development. research results Lego toys can help children develop fine and gross motor skills. When children stack and stack blocks, they use the muscles of their hands and fingers to hold and move the blocks. This helps improve their hand-eye coordination, muscle strength and fine motor skills. Lego toys allow children to use their imagination freely. They can design and build various structures and buildings according to their own imagination. It stimulates their creativity and helps them develop critical thinking and problem solving skills. Playing with Lego can also involve children in social interactions with friends or family members. They can work together to build something together or share ideas and strategies. This helps in developing their social skills and ability to communicate and collaborate with others. And provide opportunities for children to learn through experimentation and trial and error.