A photoelectric connection assembly includes a circuit board defining conductive pads on a first surface thereof and waveguides embedded therein, an electrical connector assembled to the circuit board and a light transmission module. The electrical connector includes a seat defining a first receiving cavity for receiving the conversion module and a second receiving cavity below the first receiving cavity, a cover rotatably associated with a rear end of the seat and rotating to shield the first receiving cavity and conductive terminals loaded on the seat. The terminals include contacting portions extending in the first receiving cavity for electrical connection with the conversion module and leg portions connecting with the conductive pads. The light transmission module is received in the second receiving cavity and includes conversion module.