The present work aims to explore the predictive value of maladaptive cognitive schemes such as Defectiveness Shame, Vulnerability to harm or illness, failure, dependence incompetence, social isolation, and enmeshment/ undeveloped self on suicidal ideation and behavior of adolescents in the context of the COVID 19 pandemic. During 2020 -2022, a sample of 58 teenagers, male (61%) and female (39%), with an educational level of at least 9 classes, was selected. Data were collected with the Young Cognitive Schema Questionnaire in its short form (YSQ-S3) and the Beck Scale for Suicidal Ideations (BSSI), respecting ethical aspects regarding data processing and research participation. A multiple linear regression model was performed. The results indicate significant effects of Defectiveness Shame (DS), Vulnerability to harm or illness (VH), and Dependence Incompetence (DI). The model did not demonstrate the predictive value of Failure, Enmeshment/Undeveloped Self, and Social Isolation. Further replications and expansion of the results are needed.