Since the 1990s, with the continuous advancement of economic globalization, enterprises and other countries have participated in global competition, including not only the competition of hard power such as military and economy, but also the competition of soft power such as social media and national image. This paper analyzes the communication skills of social media and the dissemination of international information in the social media era, discusses the popular construction, formation and shaping of South Korea's national image from the perspective of culture, and analyzes the video and audio. The results show that compared with information news, audio-visual news pays more attention to the social livelihood and cultural topics in South Korea.

Shitao Zhang, Anqi Jin. The Important Value of Social Media in the Construction of Korean National Image. International Journal of Frontiers in Sociology (2021), Vol. 3, Issue 15: 65-70. https://doi.org/10.25236/IJFS.2021.031508.

[1] Anselmsson J , BurakTunca. Exciting on Facebook or competent in the newspaper? Media effects on consumers' perceptions of brands in the fashion category [J]. Journal of Marketing Communications, 2019, 25(7):720-737.

[2] Wang W ,  Ying S ,  Lyu J , et al. Perceived image study with online data from social media: the case of boutique hotels in China[J]. Industrial management & data systems, 2019, 119(5):950-967.

[3] Amorim M ,  Bortoloti F D ,  Ciarelli P M , et al. Novelty Detection in Social Media by Fusing Text and Image Into a Single Structure[J]. IEEE Access, 2019, 7(99):132786-132802.

[4] Shoemaker S . Social media mining [J]. Oak Ridge national laboratory review, 2019, 52(2):4-5.

[5] Jones S . 'I'd rather people be talking about me than the plumber up the road': PR lessons from Charlie Mullins [J]. Management today, 2019(JUN.30):1-5.

[6] Saxton G D ,  Gomez L ,  Ngoh Z , et al. Do CSR Messages Resonate? Examining Public Reactions to Firms' CSR Efforts on Social Media [J]. Journal of Business Ethics, 2019, 155(2):1-19.

[7] Kumari K ,  Singh J P ,  Dwivedi Y K , et al. Towards Cyberbullying-free social media in smart cities: a unified multi-modal approach[J]. Soft Computing, 2020, 24(15):11059-11070.

[8] Zeri P ,  Tsekeris C ,  Tsekeris T . The Social Power Dynamics of Post-truth Politics: How the Greek Youth Perceives the "Powerful" Foreigners and Constructs the Image of the European Partners [J]. SSRN Electronic Journal, 2019, 142(November):1-30.

[9] Mcgregor K A ,  Clancy O M ,  Whicker M E . 113. A Social Media Exploration of Pro-Anorexia Groups: How to Reduce Risk, Increase Autonomy, and Create Healthy Online Communities [J]. Journal of Adolescent Health, 2020, 66(2):S58-S59.

[10] Nagata J M . New Findings From the Health Behaviour in School-aged Children (HBSC) Survey: Social Media, Social Determinants, and Mental Health [J]. Journal of Adolescent Health, 2020, 66(6):S1-S2.

[11] M Cottingham. Stage, C.and Hougaard, T.T.The Language of Illness and Death on Social Media: An Affective Approach. Bingley, UK. Emerald Publishing Limited. 2018. 135pp ISBN 978‐1‐78769‐482‐8[J]. Sociology of Health And Illness, 2020, 42(1):207-207.

[12] Wright R ,  Ferguson C ,  Bodrick M , et al. Social media and drug resistance in nursing training: Using a Twitterchat to develop an international community of practice for antimicrobial resistance[J]. Journal of Clinical Nursing, 2020, 29(13-14):2723-2729.