The invention discloses an integrated system for generating electricity by current, sea wave as well as tide kinetic energy and wind and solar energy, comprising a wind energy generator set, a solar energy generator set and a current kinetic energy generator set. The wind energy generator set mainly consists of a wind wheel, a drive system, a generator, a control protection system and a tower; thesolar energy generator set mainly consists of a solar energy battery pack, a solar energy controller and an inverter; and a floated current kinetic energy generator set or a layered columnwise current kinetic energy generator set are adopted for the current kinetic energy generator set. Alternating current generated by the wind energy generator set, the solar energy generator set and the currentkinetic energy generator set is transported and accesses to the Internet. The generating system uses wind power to generate electricity when the wind energy exists, uses light energy to generate electricity when the light energy exists and uses the current kinetic energy to generate electricity when the current kinetic energy exists, i.e. the wind energy, the light energy and the current kinetic energy can complement each other, can apply work together and can be used for circularly generating electricity. The invention has simple structure and lower cost, thereby being beneficial to popularization and environmental protection.