About 100 students trained by her have become popular artistes, including Jong Su Hyang of the Moranbong Band and So Un Hyang of the Unhasu Orchestra.

She began teaching vocal music at Pyongyang Inhung Secondary School in Juche 60 (1971). She had worked as a music teacher at the Pyongyang Schoolchildren's Palace and the Mangyongdae Schoolchildren's Palace, before coming to Kumsong School.

Choe Sol Hui, one of Kim's disciples, who is now a teacher of Kumsong School, told KCNA that all of her disciples remember her as an enthusiastic and passionate woman.

Choe said:

"She has tried hard to help students acquire the vocalization suitable to national emotions, in line with leader Kim Jong Il's famous work 'Theory of Musical Art'.

Her vocal teaching is easily acceptable to students.

Leader Kim Jong Il sent birthday spread to her and showed deep loving care for her in high appreciation of her merits."

Kim Cho Sim was awarded the titles of Labor Hero, People's Teacher and Merited Artiste.

She is now devoting all her mental and physical energy to training students as famous singers who would give pleasure to Marshal Kim Jong Un.