This standard specifies the test method for determining the interfacial tensile and shear bond strength of fine ceramics, composite materials, and their bonds with other materials (such as metals and glass) at room temperature using the cross-bonded method. This method applies a uniaxial compressive load to generate uniform stress on the bonded surface of a cross-shaped specimen, and calculates the strength based on the load at which interfacial cracking occurs. The key instrument for performing this test is a computer-controlled electronic universal testing machine capable of precisely controlling the loading rate and displacement. This method is applicable in various fields, including material development, quality control, and the acquisition of design data.