A biological information detection apparatus is disclosed and includes a vehicle opening detector, a riding detector, a radio wave transmitter-receiver, a biological information detector, and a correction value setting unit. The radio wave transmitter-receiver transmits a radio wave and receive a reflected wave of the radio wave, and the correction value setting unit sets a correction value for detecting biological information based on the receiving result after detection of opening of a vehicle by the vehicle opening detector and before detection of riding of a driver in the vehicle by the riding detector. The radio wave transmitter-receiver transmits a radio wave and receives a reflected wave reflected by the body surface of the driver, and the biological information detector detects biological information of the driver based on the receiving result and the correction value after the detection of riding of the driver in the vehicle by the riding detector.