The novel tells the life of a young girl, called Heidi, who lives with her grandfather in the Swiss Alps. Heidi manages to penetrate grandfather's harsh exterior and subsequently has a delightful stay with him and her best friend, young Peter.

小说讲述了一个叫海蒂的小女孩和爷爷一起生活的故事。在海蒂的不断努力下，爷爷重新点燃了自己的生活，重新做人。最后海蒂，爷爷还有她最好的朋友彼得幸福的生活在一起。