Disclosed is a swinging saw blade with a protective sheath. The swinging saw blade is connected to a machine head (1) in a driving manner and comprises a saw blade body (2). The protective sheath (3) is arranged outside the saw blade body (2). Saw teeth (24) which penetrate out of the protective sheath (3) are integrally formed at the front end of the saw blade body (2). A driving part (26) is integrally formed at the tail end of the saw blade body (2). The driving part (26) is used for connecting the machine head (1) in a driving manner and for driving the saw blade body (2) to swing to thereby drive the saw teeth (24) to swing so as to achieve sawing and cutting. The driving part (26) which is integrally formed at the tail end of the saw blade body (2) is directly driven by the machine head (1), and therefore transmission rod driving is avoided, the transmission chain is shortened, the structure is simple, a small amount of components are used, facilitating assembly. The saw blade body (2) is relatively high in transmission efficiency when driven to swing, the efficiency in grinding and cutting bone tissue in an operation is relatively high, and moreover, as the saw teeth (24) and the driving part (26) are integrally formed on the saw blade body (2), the structural strength is high, and the service life is relatively long.L'invention concerne une lame de scie oscillante pourvue d'une gaine protectrice. La lame de scie oscillante est reliée à une tête de machine (1) par entraînement et comprend un corps de lame de scie (2). La gaine protectrice (3) est disposée à l'extérieur du corps de lame de scie (2). Les dents de scie (24) qui sortent de la gaine protectrice (3) sont formées d'un seul tenant au niveau de l'extrémité avant du corps de lame de scie (2). Une partie d'entraînement (26) est formée d'un seul tenant au niveau de l'extrémité arrière du corps de lame de scie (2). La partie d'entraînement (26) est utilisée pour relier la tête de machine (1) par entraînem
