A solar energy collector with comprehensive effects. The collector is mounted on a mounting surface (5) of a building or the ground. The collector includes an external controller (4) and a support frame (13) disposed on the mounting surface. Windshields (21) with air openings (22) are disposed around the support frame (13). An energy collecting unit comprises a pipeline system disposed on underside of the support frame (13) and modularized energy collecting boards disposed on upper-side of the support frame. A water collecting unit comprises a modularized water collecting slot (31), a water collecting pipe (32) and a water collecting tank (33) that are disposed under or beside the support frame (13). An energy store unit comprises an insulation water tank and an electrical energy store system. The functions of solar power photovoltaic generation, water heating by solar energy, buildings insulation and rainwater collection can be achieved.