It marks the first time that Catherine will bring the initiative onto the international stage and she hopes to learn from Denmark – which is widely recognised as a global leader in its approach and investment in early childhood development.
Kensington Palace said: "During her visit, Her Royal Highness will spend time learning about how Denmark has created an enabling culture for early childhood development, specifically how it has promoted infant mental wellbeing alongside physical health, and how it harnesses the power of nature, relationships and playful learning in the first five years of life.
"Her programme will focus on innovative initiatives and projects which support children in their growth, particularly their social and emotional development, as well as their parents and wider communities surrounding them."
In a personal tweet from her and William's Kensington Royal account, Catherine said: "Looking forward to learning from experts, parents and practitioners about Denmark's approach to early childhood later this month.
"Denmark is a beacon of best practice in its approach to the early years, with a culture which prioritises the best start in life."
The duchess ended the message with the Danish words "Pa snarligt gensyn", which translates as "See you soon" and the letter "C" to denote a personal tweet.