In clinical settings regarding patients with mild depression, hallucinatory symptoms generally do not occur. It is commonly believed in clinical practice that patients with moderate to severe depression might experience hallucinations. However, according to the new mental illness diagnostic standard, IC11, it is considered that patients with mild depression may also exhibit symptoms of delusions and hallucinations. Therefore, the presence of hallucinations and delusions in patients should be assessed based on the severity of the condition. Typically, the occurrences of hallucinations and delusions indicate a higher severity of depression, generally moderate to severe. If diagnosed with psychotic depression, the clinical approach should involve the combined treatment using antidepressants and antipsychotic medications to address both the psychotic and depressive symptoms effectively.