Aim: The aim of the study is to examine register nurses experiences of collaboration between community healthcare and psychiatric in- patient care.

Background: Register nurses indicate a need of routines in collaboration between community health care and psychiatric inpatient care in the western Sweden region.

Method: Qualitative content analyses of focus group interviews.

Results: Register nurses experienced the healthcare communication program as a big obstacle in a developing process of a collaboration plan. The deficiencies in collaboration between the register nurses were due to poor knowledge about each group of nurses working tasks.

Conclusion: The findings contribute an understanding of the barriers in collaboration between register nurses in the Community healthcare and Psychiatric in- patient care. That requires improvement from the nurse managers to contribute well function routines.

Implications for Nursing Management: Nurse Managers need to develop a more structured collaboration plan between units to create a better collaboration in caring of the patient