A sensor-integrated wheel support bearing assembly for rotatably supporting a vehicle wheel relative to a vehicle body structure has an outer member having an inner peripheral surface formed with a plurality of raceway surfaces, an inner member having an outer peripheral surface formed with raceway surfaces in alignment with the raceway surfaces in the outer member, a plurality of rows of rolling elements interposed between the raceway surfaces in the outer member and the raceway surfaces in the inner member, respectively, and a load sensor. The load sensor is disposed in one of the outer and inner members, which forms a stationary member. The outer member has an outer periphery formed with a vehicle body fitting flange. The load sensor for detecting a load acting on the vehicle wheel by detection of a load acting on the vehicle body fitting flange is disposed in the vehicle body fitting flange.