Veterans Crisis Line Study Act of 2017 This bill directs the Department of Veterans Affairs (VA) to conduct a study on the outcomes and the efficacy of the Veterans Crisis Line during the five-year period beginning January 1, 2014, based on an analysis of national suicide data and data collected from the line. Such study shall address: (1) the efficacy of the line in leading veterans to sustained mental health regimens and suicide prevention; (2) the line's visibility; (3) the role of the line as part of the VA's mental health care services; and (4) whether receiving sustained mental health care affects suicidality, including among veterans who are at high risk for suicide.