The article presents partial results of research on the digital competences of secondary education teachers, realized within the project of Technological Agency of Czech Republic (TACR) number TL01000192. The aim of the article is to present results related to the identification of barriers of secondary school teachers in the use of ICT for teaching. Quantitative research was focused on cognitive and emotional barriers in a sample of 2015 respondents. Data were collected through an online questionnaire between September 2018 and January 2019. Among the cognitive barriers, we have included a lack of knowledge and skills. Among the emotional barriers, we have included concerns about the use of digital technology and the lack of confidence in new and untested procedures.