The relationships between museums and schools have been strengthened in recent years but little previous research has studied the activities that museums offer for children from 0 to 6. The present article analyses the role of early childhood education in museums' programs in Catalonia. A total of 118 museums and 296 activities have been analyzed and categorized. Results show that the activities that museums offer for early childhood education schools are limited. Guided visits and workshops are the most representative activities, and the majority of them are focused on the age range from 3 to 6. Future studies can deep in the age range from 0 to 3 in order to improve the relationships between early childhood education and museums.