The present application provides a leak hole leak rate detection device and a method for implementing leak hole leak rate detection using the device. The device includes a gas storage tank, a valve, a leak hole, a latex sealing container, an electronic stopwatch and an electronic balance. The device can detect the leak rates of leak holes within a range of 1×10−1˜1×10−8 Pa·m3/s, and has the characteristics of scientific detection principle, simple and reasonable structure and the like.