An object detecting apparatus includes reflecting point detecting means, reflecting point setting means, rear-end positional information generating means and object detecting means. The reflecting point detecting means detects position and speed of reflecting point reflecting radar waves. The reflecting point setting means sets high and low level reflecting points, the high level reflecting point having reflection intensity higher first detecting threshold, and the low level reflecting point having reflection intensity higher than second detecting threshold and lower than the first detecting threshold. The rear-end positional information generating means checks whether or not a low level reflecting point is present satisfying a same object condition in a rear-end searching range, and correlates positional information of the low level reflecting point as rear-end positional information with the high level reflecting point used as reference of the searching range. The object detecting means detects the object surrounding the vehicle.