This document describes the ethical principles(code of conduct)of well-being mentoring within the frames ofthe OSCAR project.The main purpose and goal of the OSCAR well-being mentoring program is to support mental health, and the developing of well-being competencies and skills. Based on the OSCAR well-being framework, the well-being skills are: (1) Finding Meaning in Life, (2) Finding Meaning at Work, (3) Awareness of Well-being, (4) Recognizing and Understanding Emotions, (5) Emotion Regulation, (6) Stress Management, (7) Setting goals, (8) Psychological Resilience, (9) Accountability, (10) Finding a Work-Life Balance, (11) Strengthening Social Relationships, (12) Assertive Communication, (13) Interpersonal and Social Empathy, (14) Dealing with Perfectionism, (15) Promoting Self-Kindness, and (16) Increasing Self-Confidence. More information on the project:http://oscar-ai.eu/ Learning and mentoring platform:http://edoer.eu/ Mental health training programme:https://labs.tib.eu/edoer/en/dashboard/discovery/jobs/99