Yesan County's official flower is the forsythia, which blooms earlier in spring than its leaves, and symbolizes the season of harmony and peace. The yellow color of the flower represents the peace and harmony that are emblematic of the county's citizens, while the softness of the stem symbolizes their pure-hearted nature.
The Yesan apple is a representative specialty product of Yesan County. Its flesh is dense and it is exceptionally juicy due to the ample autumn sunlight and the perfect diurnal temperature range. It symbolizes the county's blessed nature, health, and passion. It also represents "flying high" (飛上).
The stork, designated as Natural Monument No. 199, is a significant indicator species for assessing environmental health. It represents Yesan County's commitment to living in harmony with nature with eco-friendliness, stability, and prosperity. The bird also symbolizes the unity, harmony, and readiness of the residents of Yesan County.