The study focus on the tow distinct rain gauges include Doppler radar and tipping bucket to measure rainfall, all the data were collected from August 2020 to August 2021, at the educational meteorology station of National Pingtung University of Science and Technology. The properties of antecedent rainfall had shown by time deficit, rainfall amount and rainfall intensity, for the rainfall pattern of convective, topographic and frontal, respectively. The results had summarized as: to use Doppler radar and tipping bucket measure rainfall, could find the former was less than latter within rainfall intensity was more than 11.1, 1.4 and 2.4 mm/hr under rainfall pattern of convective, topographic and frontal, meanwhile the time deficit/ rainfall amount of antecedent rainfall were describe as follow (5 min/0.9 mm), (34 min/0.3 mm) and (58 min/2.7 mm).