There's no challenge without a crisis. Without challenges, life becomes a routine, a slow agony.“ is a statement of a famous genius, Albert Einstein. Organizations that are ready to cope with the crisis and change are getting stronger, and those that are not are getting weaker. It was this challenge that many organizations were faced with when the COVID-19 virus appeared and when a crisis began that will be remembered by the whole world. In a crisis, crisis management must be able to deal with the crisis and certain negative effects that may jeopardize the survival of the organization. In such a turbulent and uncertain environment, with rapid and radical changes, strategic human resource management is also crucial. During the crisis, various negative emotions and thoughts occur among employees, who are the most sensitive and integral part of the organization. It is up to the crisis management to overcome the crisis with the least possible losses and negative consequences for business and employees, with proper management and two-way crisis communication. The main objective of this paper is to define the concepts of business crisis and crisis communication with employees as a function of human resources management, analyze crisis communication of the internal Crisis staff “Ericsson Nikola Tesla d.d.” and explore its effectiveness in reducing negative emotions and thoughts that employees had during COVID-19 crises. For research purposes, an interview with a member of the Crisis staff of the company and an anonymous survey were conducted. Research results show that the quality work of the Crisis staff and all their actions and activities can influence employee’s negative thoughts and emotions during the COVID-19 crisis.