Children living in residential care homes (RCH) often present conditions of abandonment due to separation, abuse and mistreatment; circumstances that are detrimental to proper emotional development, resulting in poor self-confidence, aggressive behaviors, low self-esteem, anxiety, among other developmental problems. Additionally, pandemic lockdown hinders access to mental health services for RCH service providers, and limits children to external mental health support and resources. The objective of this study was to design and evaluate the effectiveness of a remote-applied Emotional-Intelligence-based intervention program (RA-EIBI) for children living in RCH during pandemic lockdown. A non-parametric pre-test, treatment, post-test comparative design was used to evaluate effectiveness of the intervention program. Seven children living in RCH during pandemic lockdown were initially assessed using Evaluation of Neurological Soft Signs, and Empathy Quotient (EQ-I) to estimate emotional intelligence quotient. A 10 session RA-EIBI program was designed and applied to the children after initial assessment, and a final evaluation was conducted to perform related samples comparisons. Results shown a non-significant mean increase of intrapersonal, interpersonal, stress management, adaptability, and emotional state, all emotional intelligence-related skills. A RA-EIBI program is an accessible resource for RCH, and children living under this condition. EI skills were maintained along the social isolation period due to COVID-19. Followup of emotional conditions of children demonstrated an improvement in self-perceived well-being.