An ultrasound probe includes a transducer layer, a first matching layer, a lens layer, and a backing layer. The first matching layer is disposed at a first side of the transducer layer and a material of the first matching layer is PMMA or PO. The lens layer is disposed at the first side of the transducer layer and the first matching layer is located between the transducer layer and the lens layer. The backing layer is disposed at a second side of the transducer layer, wherein the first side is opposite to the second side.