A photovoltaic connection box adapted to be mounted on a solar panel, comprising: a box body having a first end and a second end opposite to each other in a lengthwise direction thereof, and a first side and a second side opposite to each other in a widthwise direction thereof; four conduction terminals (210, 220, 230, 240) comprising a first conduction terminal, a second conduction terminal, a third conduction terminal and a fourth conduction terminal received in the box body and being arranged sequentially from the first end to the second end of the box body; and three surface-mounted diodes (310, 320, 330) comprising a first surface-mounted diode, a second surface-mounted diode and a third surface-mounted diode arranged sequentially from the first end to the second end of the box body, an anode pin (311, 321, 331) and a cathode pad (312, 322, 332) of each diode (310, 320, 330) being soldered on two adjacent conduction terminals (210, 220, 230, 240), respectively, wherein the plurality of surface-mounted diodes (310, 320, 330) are arranged so that an angle defined between axes of two adjacent surface-mounted diodes (310, 320, 330) is not equal to zero; wherein the first conduction terminal has a first edge facing the second conduction terminal, and the second conduction terminal has a first edge facing the first conduction terminal; wherein the first edge of the first conduction terminal has a first edge segment and the first edge of the second conduction terminal has a first edge segment; wherein the anode pin of the first surface-mounted diode is soldered on a border area of the first edge segment of the first conduction terminal, and the cathode pad of the first diode is soldered on a border area of the first edge segment of the second conduction terminal; characterized in that the first edge segment of the first conduction terminal extends toward the first end of the box body, and the first edge segment of the second conduction terminal extends toward the first end of the box body; wherein the first edge segment of the first conduction terminal and the first edge segment of the second conduction terminal are arranged opposite to each other and away from each other in the widthwise direction of the box body; and wherein the first edge of the second conduction terminal extends from the first side to the first end of the box body along a curving path. a box body having a first end and a second end opposite to each other in a lengthwise direction thereof, and a first side and a second side opposite to each other in a widthwise direction thereof; four conduction terminals (210, 220, 230, 240) comprising a first conduction terminal, a second conduction terminal, a third conduction terminal and a fourth conduction terminal received in the box body and being arranged sequentially from the first end to the second end of the box body; and three surface-mounted diodes (310, 320, 330) comprising a first surface-mounted diode, a second surface-mounted diode and a third surface-mounted diode arranged sequentially from the first end to the second end of the box body, an anode pin (311, 321, 331) and a cathode pad (312, 322, 332) of each diode (310, 320, 330) being soldered on two adjacent conduction terminals (210, 220, 230, 240), respectively, wherein the plurality of surface-mounted diodes (310, 320, 330) are arranged so that an angle defined between axes of two adjacent surface-mounted diodes (310, 320, 330) is not equal to zero; wherein the first conduction terminal has a first edge facing the second conduction terminal, and the second conduction terminal has a first edge facing the first conduction terminal; wherein the first edge of the first conduction terminal has a first edge segment and the first edge of the second conduction terminal has a first edge segment; wherein the anode pin of the first surface-mounted diode is soldered on a border area of the first edge segment of the first conduction terminal, and the cathode pad of the first diode is soldered on a border area of the first edge segment of the second conduction terminal; characterized in that the first edge segment of the first conduction terminal extends toward the first end of the box body, and the first edge segment of the second conduction terminal extends toward the first end of the box body; wherein the first edge segment of the first conduction terminal and the first edge segment of the second conduction terminal are arranged opposite to each other and away from each other in the widthwise direction of the box body; and wherein the first edge of the second conduction terminal extends from the first side to the first end of the box body along a curving path.