The COVID-19 pandemic has limited many human activities, including the buying and selling process. It makes many companies experience a decline in sales and even go bankrupt. This paper takes the example of a baby product company to explore the impact of competitive strategies on sales volume in the era of the COVID-19 pandemic. Based on the analysis, the baby product company's sales volume has decreased, but not significantly. The company is still able to survive with the cost leadership strategy implemented. This research paper aims to study the cost leadership strategy and analyze the benefits of adopting such strategies on baby product companies. In addition, this paper also provides views on how companies must respond to crises such as COVID-19 to survive.