Abstract: According to the coupling relationship between slider and flow regulators,the hydraulic circuits are drawn, the mathematics models are established, the influence of regulator parameters on static and dynamic characteristic of closed hydrostatic guideway which has opposite differential rectangle chamber are analyzed. This research obtains the combination mode of regulators, the best resistance ratio, the methods to optimize, the equality relation between the resistance ratio which of single film's and support chamber's and the resistance ratio which of single film's and parallel loop's, the influence of preload loop's resistance on guideway stability, provides reference and ways to regulators design and test.