The utility model relates to an ear type clamp with an improved structure, which comprises a clamp body and a lining sheet, and is characterized in that an ear-part clamping head of the clamp body is provided with an ear top positioning lug which is connected with the clamping head into a whole; the periphery of the clamp body is provided with a square hole and an indicating mechanism; the end surface of one side of the clamp body is provided with a flanged edge; the position of the lining sheet corresponding to the square hole in the clamp body is provided with a flanged-edge square hole; and the flanged-edge square hole and the square hole in the clamp body form a bidirectional riveted structure by the flanged edge. The ear type clamp has the advantages of firstly, preventing the ear-part clamping head from inclining in the clamping process, guaranteeing two ends of the clamping head to be basically consistent after clamping, and increasing the strength of the ear-part clamping head; secondly, preventing a shaft from rotating when being stressed, thus being firm and stable, and also being capable of being used for transition indication in plumbing fitting; thirdly, being convenient for observing whether the ear clamp works well, giving an indication when the clamping is well conducted, thus being accurate and reliable; and fourthly, playing a role in limiting and increasing the strength of the clamp body due to the flanged edge of end surface of the clamp body.