Abstract: A pressure pulse wave measurement apparatus includes: a sensor unit; a pressing unit configured to press the sensor unit; and a rotation control member configured to rotate the sensor unit about each of two axes orthogonal to a pressing direction of the pressing unit. The rotation control member includes a first member, a first rotation member and a second rotation member. The first member and the first rotation member both include a first motion conversion mechanism for converting a rotational motion realized by the first rotation member being rotated, into a rotational motion of the sensor unit about one of the two axes, and the first member and the second rotation member both include a second motion conversion mechanism for converting a rotational motion realized by the second rotation member being rotated, into a rotational motion of the sensor unit about the other of the two axes.