A target detection method and apparatus, a computer-readable storage medium, and an electronic device. The method comprises: acquiring an input image, and performing feature extraction on the input image by means of a first convolutional layer and a second convolutional layer to obtain a reference feature image (S110); performing feature extraction on the reference feature image by means of a third convolutional layer to obtain a first target feature image, and performing feature extraction on the first target feature image by means of a fourth convolutional layer to obtain a second target feature image (S120); acquiring a reference pre-selected image of each point on the first target feature image and the second target feature image (S130); and determining a target pre-selected image from among a plurality of reference pre-selected images, and completing target detection by means of a target detection algorithm (S140).