It's necessary to have long term self-care of the drainage for cases of percutaneous transhepatic cholangiography with drainage (PTCD). The purpose of this strategy is to set up a uniformly nursing care standard for cases of PTCD in order to promote the quality of nursing care and reach nursing goal of best self-care. The standard was set up according to improved knowledge and experience in PTCD care. An objective evaluation chart was used to evaluate and analyze the effect of the nursing care standard. From January 1996 to December. 1997, 111 hospitalized patients with PTCD were gathered and taught the uniform nursing care standards by nursing personnel in 4 gastrointestinal wards of VGH-Taipei. The results showed that knowledge and skill of PTCD care was improved very much and the complications of PTCD care became much less. In conclusion, the application of an uniform nursing care standard is effective in the promotion of the Nursing care quality in the cases of PTCD.