Controlling the moisture content in paddy seeds during the drying process is crucial for maintaining seed quality. Although the capacitance technique offers a straightforward method for detecting moisture content based on changes in the seeds’ dielectric properties, achieving sufficient sensitivity to detect moisture variations in paddy seeds can be challenging. In this study, we propose an LC resonant-based capacitance sensor employing finger-type electrodes to evaluate the moisture content of paddy seeds during drying. Two finger-type electrode pairs and their corresponding LC resonant circuits were designed to operate at 4.49 MHz and 3.38 MHz, respectively. The capacitance of seven paddy seed samples with varying moisture contents was measured using the developed sensor, and their moisture contents were verified using the oven method. The measured capacitance changes exhibited good linearity with increasing moisture content, characterized by slopes of 13.9 fF/wt.% and 10.8 fF/wt.% for electrodes 1 and 2, respectively. These results demonstrate that the developed LC resonant-based capacitance sensor is sufficiently sensitive to detect small variations in the seeds’ moisture content with a strong correlation. Further improvements, such as increasing the electrode size and implementing a normalization technique to mitigate the impact of seed density within the electrode area, could further enhance the sensor's sensitivity.