Abstract:     WiFi indoor location technology based on RSS (Received Signal Strength) has become a research hotspot in recent years due to its low cost and easy deployment. WiFi indoor location based on RSS due to indoor environment is complex, dynamic characteristics, position estimation accuracy and reliability is low, so this paper proposes a new fusion positioning strategy to further improve the position of the WiFi indoor positioning precision based on RSS. Three kinds of AP fusion strategy selection strategy position estimation results to estimate the new position, the test results show that the new proposed position fusion positioning strategy can improve the accuracy of position estimation, reliability and guarantee the positioning results, and the overall performance is better.