According to objective expressed by 1992's decree about psychiatric's emergency, Philippe Pinel's hospital in Amiens have emergency ward since march 1994. Computing activity within hospital allow to surround characteristics of patients who come to psychiatric's hospital emergency, 2,122 patients have been examined in 1995, either 6 a day. 220 were consultations, 1,920 were admittance to hospital. Among these 2,122 patients, 20.5% don't know mental hospital, 19% don't know psychiatry, 40% have a relapse and 20% where hospitalized but without met again a doctor. On the average, one hour was dedicated to patient in 1995. On a level with sociocultural, men are 59%, which 26% between 30 and 39 years, and 25% between 40 and 49 years. Among the patients, 69% live alone, and 12% have social difficulty. Patients are sent by General Hospital (27%), general practitioners (24%, but this number grow in 1996), and various psychiatric institutions (10%). The main symptoms are: sadness and depression (40%), anxiety (37%), sleep disruption (31%), alcoholism (23%), bodily symptoms (16%), attempt to suicide (15%), social problems (14%). After observation, diagnosis are: psychosis (30%), neurosis (23%), alcoholism (19%), "anti-social" personality (10%), and drug addiction (7%). Among these 2,122 patients in 1995, 90.5% (1920) are sent to hospital, which 72% with their assent, and 28% under constraint. Consultations (9.5%) are sent to psychiatric's institution (43%), general hospital (35%), and psychiatrist (6%). In conclusion, computing activity within psychiatric's emergency could enable best reception, guidance, and collaboration with social or medical colleague.