The utility model discloses a valve wall thickness simple measuring tool comprising a left body, a right body, a calibrated scale, and a pointer. An upper end of the left body is fixedly connected with the calibrated scale, and an upper end of the right body is fixedly connected with the pointer. The upper end of the left body and the upper end of the right body are connected together to form a left opening/closing structure and a right opening/closing structure in a hinged manner. A left end of the left body and a right end of the right body are respectively provided with a left measuring contact and a right measuring contact. The utility model is advantageous in that the inaccuracy of the measurement of the stainless steel valve wall thickness of the ultrasonic wave measurement instrument can be remedied, and the thicknesses of various irregular products (such as jar like products) can be conveniently and quickly measured.