The invention relates to a compact electric reel. The compact electric reel comprises a fixed bracket, a reel body, a servo motor, a sealing cover plate, an RV reducer and a rotary joint; the servo motor is fixed on the fixed bracket and used for driving the RV reducer; the sealing cover plate and the rotary joint are arranged at the two sides of the reel body respectively; the RV reducer is coaxially arranged in the center of the reel body, and the RV reducer is coaxially and cooperatively arranged with a pin wheel housing; the pin wheel housing outside the RV reducer serves as an output endto be fixedly connected with the reel body, an upper planet carrier in the RV reducer is fixedly connected with one end of the sealing cover plate, and the other end of the sealing cover plate is fixedly connected with the fixed bracket; the rotary joint is integrally arranged on the RV reducer, a shell of the rotary joint is fixed on the pin wheel housing to serve as a rotor of the reel body together, and a body core of the rotary joint is fixedly connected with a lower planet carrier to serve as a supporting shaft of the reel body. The electric reel has a compact structure, high transmissionefficiency, low noise, convenient intelligent control and broad market application prospects.