This study analyzed the impact of ffemale farmers' recognition of co-ownership status on agricultural sales of farms, using raw data from the 2018 Survey on the Status of Women Farmers. To solve the endogeneity problem of the co-manager status variable, Two-Stage Least Squares estimation(2SLS) was estimated, and the 2SLS Quantile Regression model was used to analyze the economic effect of female farmers' farming status by sales volume. As a result of the analysis, middle-aged female farmers in their 50s and 60s with a high proportion of farming activities are acting as co-owners, and the more highly educated female farmers are, the more likely they are to perceive themselves as co-owners. When all other conditions were the same, the agricultural sales of farms owned by female farmers were 24.4% higher, showing that improving the status of female farmers was significantly contributing to the farm economy. In particular, quantile regression analysis shows that in farms with relatively small agricultural sales, female farmers contribute greatly to the farm economy when they act as co-owners. The smaller the farm, the more likely it is that the status of female farmers will lead to an increase in the farm economy. It appears that supports will be needed to achieve this.