Vocational skills are part of the concept of life skills in the school system. To develop children's potential to have skills so that they can compete in the world of work. Children with special needs need proper education to develop their potential to the maximum. One of the children with special needs is a child with intellectual disabilities. Generally, children with intellectual disabilities refer to general intellectual functions that are markedly below average along with deficiencies in behavioral adaptation and take place in development. Thus, it requiresvocational training as a provision for independence. Ecoprint skills with pounding techniques are given to children with intellectual disabilities, before being implemented, an assessment is needed to obtain data on the abilities and difficulties of children in carrying out vocational ecoprint skills with pounding techniques. This study uses qualitative descriptive methods, with observational data collection techniques, interviews, documentation studies, FGD and validation. The results showed that the ability of mild tuagrahita children has differences in ability from one another. Based on the collaboration of teachers and researchers, it produced a vocational assessment instrument in training the skills of making ecoprints with pounding techniques which were then validated to teachers in two different schools with the existence of vocational assessment instruments in skill training, it can make it easier for children with mild intellectual disabilities to carry out ecoprint making with pounding techniques effectively and purposefully well. This research is recommended for schools, teachers, and researchers to be used as a guideline and reference for innovation to increase insight in the preparation of assessment instruments.