The invention discloses an indoor decoration spray forced locator, which comprises a keel clamping piece (1), and a multi-functional locating plate (2), wherein the two ends of the keel clamping piece (1) are provided with buckles (3), and the middle of the keel clamping piece (1) is provided with a folding slot (4); the two sides of the multi-functional locating plate (2) are inserted into the folding slot (4) of the keel clamping piece (1) in a left and right adjusting way, and the keel clamping piece (1) can be clamped with a keel by the buckles (3) in a front and back adjusting way; a circular hole is arranged in the middle of the multi-functional locating plate (2). The indoor decoration spray forced locator provided by the invention can effectively solve the problem that the construction period is delayed by delay of overall progress due to fighting of decoration installation pipeline arrangement, repeated locating, and out-of-step of installation unit progress and decoration construction process in the prior project; the installation unit progress is effectively promoted, thereby contributing to the decoration construction progress.