Aiming at the front beam joints between the central wing and the outer wing of the horizontal tail， the composite joints test pieces are designed. According to the actual load conditions of the horizontal tail joints and the configuration of the test pieces， the specific test fixtures are designed and the static test scheme is determined. Through the static test， the static limit loads and failure modes of the test pieces under the actual load conditions are obtained. The static analysis of the central wing front beam joint and the outer wing front beam joint test pieces are carried out on ABAQUS， the finite element software. The finite element prediction results are in good agreement with the test results， which proves the accuracy of the finite element model. Numerical results show that under the static load conditions， the stress concentration occurrs at the hole edge， which leads to the destruction of the fiber and expansion around the hole edge， and finally the lost of the bearing capacity.