The invention discloses a city group ecological space damage identification and evaluation method. The method includes: analyzing and identifying important landscape space patterns such as city groupecological source land and ecological galleries; on the basis, overlapping an urban group landscape pattern comprehensive index and an ecological service function conversion equivalent evaluation result brought by land utilization change to obtain urban group ecosystem damage space distribution; furthermore, combining on-site investigation and classification combing to summarize the typical ecological damage space type of the urban group, and carrying out cause analysis and damage state evaluation.