The utility model discloses a
test sample strip, a detection device and a mould, the
test sample strip is used for testing the risk of tiger
skin of an injection molding part, the
test sample strip is an injection molding part and comprises a body part, and the body part is in a
spiral line shape on the cross section perpendicular to the thickness direction of the test sample strip. According to the test sample strip disclosed by the utility model, the test sample strip is the injection-molded part and comprises the body part, and the body part is in the
spiral line shape on the cross section perpendicular to the thickness direction of the test sample strip, so that the melt flow on the test sample strip is closer to the flow condition of the part, far away from a
sprue gate, in the actual injection-molded part; therefore, the long-distance flowing process of the melt on the mold is simulated more truly, the accuracy of a test result is further improved, the position where the tiger stripes appear is obtained better in a quantified mode, and the risk of tiger stripe defects can be judged in the early stage of product development.