The invention discloses a self-elevating platform wave current loading experimental data acquisition apparatus and method. The technical scheme includes a pool (1), a self-elevating platform (2), a stress strain gauge combination (3), a triaxial vibration acceleration sensor (4), an acoustic emission sensor combination (5), a wave height sensor (6), a data acquisition device (7), and a data processing display device (8). A mode for arranging a plurality of sensors at the same time is employed. Multiple groups of experiment results can be obtained after one experiment is finished, and the multiple experiment results can be mutually verified. The experiment workload is greatly reduced on the basis of guarantee of the experiment result reliability. The problem of synchronous acquisition of each sensor can be well guaranteed. All environment data in an experiment process is collected completely and once. The precision of the wave current loading experimental data acquisition is greatly improved. The problems that the error of the experimental data is large and manpower and material resources are waste in the prior wave current loading experiment are solved.