A sensor-equipped wheel support bearing assembly for rotatably supporting a wheel relative to a vehicle body, the wheel support bearing assembly comprising: an outer member having an inner periphery formed with a plurality of raceway surfaces; an inner member having an outer periphery formed with a plurality of raceway surfaces opposed to the raceway surfaces of the outer member, one of the outer member and the inner member serving as a stationary member; a plurality of rows of rolling elements interposed between the raceway surfaces of the outer member and the raceway surfaces of the inner member; a plurality of sensor units, each of the sensor units including a strain generator member and at least two sensors (22, 22A, 22B) mounted on the strain generator member to sense strain in the strain generator member, the strain generator member including at least two fixation contact segments fixedly in contact with the stationary member (1, 2); and an estimator (32, 32A, 32B, 32C, 32D) configured to estimate a load that acts on the wheel support bearing assembly, based on output signals of the at least two sensors (22, 22A, 22B); characterized in that the strain generator member is in the form of a thin sheet plate member formed with a cutout and made of an elastically deformable metal, and the strain generator members of the plurality of sensor units are formed of a single band-shaped strain generator body continuously joining the plurality of sensor units with each other, the at least two fixation contact segments of each of the strain generator members of the band-shaped strain generator body being arranged at same axial positions on an outer diametric surface of the stationary member (1, 2) and spaced from each other along a circumferential direction of the outer diametric surface of the stationary member (1, 2) and each of the sensor units includes neighboring first, second and third fixation contact segments and two neighboring sensors (22, 22A, 22B), each of the sensors (22, 22A, 22B) mounted on a portion between the first and the second fixation contact segments and a portion between the second and the third fixation contact segments. an outer member having an inner periphery formed with a plurality of raceway surfaces; an inner member having an outer periphery formed with a plurality of raceway surfaces opposed to the raceway surfaces of the outer member, one of the outer member and the inner member serving as a stationary member; a plurality of rows of rolling elements interposed between the raceway surfaces of the outer member and the raceway surfaces of the inner member; a plurality of sensor units, each of the sensor units including a strain generator member and at least two sensors (22, 22A, 22B) mounted on the strain generator member to sense strain in the strain generator member, the strain generator member including at least two fixation contact segments fixedly in contact with the stationary member (1, 2); and an estimator (32, 32A, 32B, 32C, 32D) configured to estimate a load that acts on the wheel support bearing assembly, based on output signals of the at least two sensors (22, 22A, 22B); characterized in that the strain generator member is in the form of a thin sheet plate member formed with a cutout and made of an elastically deformable metal, and the strain generator members of the plurality of sensor units are formed of a single band-shaped strain generator body continuously joining the plurality of sensor units with each other, the at least two fixation contact segments of each of the strain generator members of the band-shaped strain generator body being arranged at same axial positions on an outer diametric surface of the stationary member (1, 2) and spaced from each other along a circumferential direction of the outer diametric surface of the stationary member (1, 2) and each of the sensor units includes neighboring first, second and third fixation contact segments and two neighboring sensors (22, 22A, 22B), each of the sensors (22, 22A, 22B) mounted on a portion between the first and the second fixation contact segments and a portion between the second and the third fixation contact segments.