An anti-pull-apart decorative lamp, comprising: a light source comprising a light-emitting chip and a lead wire frame, the lead wire frame having a first end electrically connected to the light-emitting chip and a second end at which a pin (121, 122) is provided; a connecting wire comprising a conducting wire and an insulating layer, the insulating layer covering a side wall of the conducting wire, the conducting wire at one end of the connecting wire protruding from the insulating layer and forming a wiring connector, and the other end of the connecting wire being electrically connectable to a drive power supply; a conductive terminal having a first end provided with a first clip, a second end provided with a second clip, the first clip being roll-pressed against the pin (121, 122) and tightly surrounding the pin (121, 122), and the second clip being roll-pressed against the wiring connector and tightly surrounding the wiring connector; and an insulating plastic surrounding the wiring connector, the pin (121, 122), and the conductive terminal, the insulating plastic being configured for preventing the pin (121, 122) from short-circuiting and/or electric leakage; wherein a length of the first clip in a circumferential direction of the conductive terminal is greater than or equal to a circumferential length of the pin (121, 122), and a length of the second clip in the circumferential direction of the conductive terminal is greater than or equal to a circumferential length of the conducting wire, so that the first clip and the second clip at least cover surfaces of the pin (121, 122) and the conducting wire by one lap, which increases contact areas between the first clip and the pin (121, 122) and between the second clip and the conducting wire and thus increases frictional forces between the first clip and the pin (121, 122) and between the second clip and the conducting wire. a light source comprising a light-emitting chip and a lead wire frame, the lead wire frame having a first end electrically connected to the light-emitting chip and a second end at which a pin (121, 122) is provided; a connecting wire comprising a conducting wire and an insulating layer, the insulating layer covering a side wall of the conducting wire, the conducting wire at one end of the connecting wire protruding from the insulating layer and forming a wiring connector, and the other end of the connecting wire being electrically connectable to a drive power supply; a conductive terminal having a first end provided with a first clip, a second end provided with a second clip, the first clip being roll-pressed against the pin (121, 122) and tightly surrounding the pin (121, 122), and the second clip being roll-pressed against the wiring connector and tightly surrounding the wiring connector; and an insulating plastic surrounding the wiring connector, the pin (121, 122), and the conductive terminal, the insulating plastic being configured for preventing the pin (121, 122) from short-circuiting and/or electric leakage; wherein a length of the first clip in a circumferential direction of the conductive terminal is greater than or equal to a circumferential length of the pin (121, 122), and a length of the second clip in the circumferential direction of the conductive terminal is greater than or equal to a circumferential length of the conducting wire, so that the first clip and the second clip at least cover surfaces of the pin (121, 122) and the conducting wire by one lap, which increases contact areas between the first clip and the pin (121, 122) and between the second clip and the conducting wire and thus increases frictional forces between the first clip and the pin (121, 122) and between the second clip and the conducting wire.