Five precast concrete specimens with steel cable connections were tested statically. These specimens include three wall-wall specimens and two floor-floor specimens. Then the existing methods were used to calculate the shearing resistance of the connections. The results show that the shear capacity of the seam is mainly composed of shear friction of the steel cable in tension and the dowel action of the steel cable. The specimens exhibit excellent ductility. Based on the test results, in-depth analyses were conducted to study the behavior and the failure mechanism of the connection with steel cable. Using rational assumptions, we proposed a trilinear model to predict the shear behavior of the steel cable connection. The results of the trilinear model are in good agreement with those obtained in the test, which provide useful reference to the design and construction of total precast concrete structures with steel cable connections.