PURPOSE: To provide a fixing tool for a vinyl house capable of surely fixing a vinyl sheet to sheet-fixing rails with easy work and surely and readily fixing also ropes such as house-fixing bands or vinyl cords, etc.

CONSTITUTION: This fixing tool for a vinyl house is composed of nearly parallelogramic engaging pieces engaged and fixed in a trapezoidal supporting channel 5 by inserting them from opened ports of a sheet fixing rail 6 having the supporting channel 5 and twisting them about 45°C, a post integrally molded so as to project upward from about central position of each engaging piece and an arm having a rope-supporting part at the top end part side and integrally molded so as to project in almost horizontal direction at a top end part of the post.