To obtain a spherical surface acoustic wave component capable of rapidly mounting a spherical surface acoustic wave element on a sensor holder and rapidly analyzing a component in a medical fluid or gas.

This surface acoustic wave device is equipped with the spherical surface acoustic wave element 10, which has a spherical piezoelectric body base material, a pair of the comb-like electrodes provided to the part of the circulatory region on the surface of the piezoelectric body base material provided along the crossing line of the plane, that is vertical to the Z-axis passing the center of the crystal of the piezoelectric body base material and passes the center of the piezoelectric body base material and the first and second element electrodes 13a and 13b connected to the comb-like electrodes and provided on the surface of the piezoelectric body base material 11, and uses the spherical surface acoustic wave part 10a having an element holder which holds the spherical surface acoustic wave element and also holds a terminal lead while bringing it into contact with the first and second element electrodes.