Even if the diagnosis of the worker who reached the leave of absence from duty is the same depression, it varies with condition of worker's backgrounds such as a factor on the person side and a factor on the workplace side. Physician in charge mainly treat the patients for a factor on the person side with medication, psychotherapy, and resting as well as giving every possible advice for reinstatement. Cognitive behavioral therapy like correspondence is carried out to think about sense of values, and a behavior pattern of a patient for prevention of recurrence revival after the reinstatement. Those changes that workers got by treatment sometimes attenuate soon after the reinstatement, and the character and behavior pattern before the illness are replaced which result in reaching the revival. Co-workers in the workplace may do the same correspondence as before illness, because they think workers' reinstatement means that the worker recovered to a state before illness. To prevent this situation in reinstatement, co-workers' perception of the worker's change in way of thinking and behavior pattern is necessary and so is the cooperation methods.
 "Guidelines for improving mental health of the worker in the working place" is established in 2000 by the government in which "four care" that is; self-care, care by the line, care by the industrial health staff, and care by outsourcing, are supposed to develop a system to support mental health in workplace. Psychiatrist in charge falls into outsourcing, so it's better to cooperate with the industrial health staff at first, to share information about worker's self-care before being directly involved in self-care or care by the line. Along with the Guideline by the government, psychiatrist in charge should cooperate with workplace to improve and maintain worker's health.
 Author's abstract