A method is described to locate eyes accurately in this paper. Eye location is the key step of many face detection methods. After obtaining an eye window, the eye can be located by using projection functions. A novel projection function, i.e. hybrid projection function (HPF), is proposed in this paper. HPF combines integral projection function and variance projection function so that it can reflect the mean and the variance of the pixels in a particular direction of the image. Experimental results show that eyes can be located quite accurately by using hybrid projection function.