The performance of slotted-in steel plates dowelled and glued-in bar post-to-beam connections were tested with monotonic and reversed cyclic loading protocols. The performance of different types of filled-in shear wall hybrid post-and-beam frame constructions was studied using a finite element model that was developed with SAP2000. Results indicate that the initial stiffness of slotted-in steel plates dowelled post-to-beam connections approximately equals to zero and glued-in bar post-to-beam connections have relative high initial stiffness and resistance capacities. The racking displacement capacity of post-and-beam frame is 2～3 times than that of shear wall, the lateral load resistance capacity of post-and-beam frame cannot be fully employed in hybrid constructions. The hybrid constructions behave more similar to shear walls. Based on the analysis of the tests, mathematical models verified by experimental tests for the hybrid constructions were developed and proposed.