The invention discloses a test method for studying on the self-healing capability of laser metal formation. The test method comprises the following steps: utilizing a laser metal to directly form multiple groups of single-channel thin-wall test samples on a substrate with bulges by utilizing an orthogonal test method under an open-loop control condition; analyzing the influence of technical parameters on the sizes of samples; and seeking for the main influence factors so as to establish a reasonable forming process, thereby promoting the forming precision. The test method for studying on the self-healing capability of laser metal formation has the advantages that the test method is used for studying on the influence of different technical parameters on the self-healing capability of the laser metal formation, establishing an optimized technical parameter combination and quantitatively analyzing the feature self-healing capability ranges of different materials in the laser metal formation.