The invention discloses a simple trademark weaving device. The simple trademark weaving device comprises a work bench, a retaining ring, a work shaft, line weaving units and needle seats. A trademark belt is arranged on the work bench, the retaining ring and multiple first rollers are arranged at the left end of the work bench, a second roller is fixedly arranged at the right end of the work bench, a control cabinet and a fixing frame are arranged on the lateral face of the work bench, and a power supply and a control unit are arranged in the control cabinet. A trademark belt winding shaft is arranged on the retaining ring, a clamping groove is formed in the trademark belt winding shaft, a trademark belt winding sleeve is arranged outside the trademark belt winding shaft in a sleeving mode, a clamping portion is arranged in the trademark belt winding sleeve and is in fit connection with the clamping groove, two ends of the work shaft are in fit connection with the fixing frame, a joint is arranged on the work shaft, and multiple uniformly distributed line grooves are formed in the joint. The multiple line weaving units are arranged on the work shaft in a sleeving mode, and each line weaving unit comprises a mounting seat and a fixing sleeve. A connection portion is arranged at the upper end of each mounting seat, the connection portions and the fixing sleeves are connected through bolts, the needle seats are arranged on the mounting seats, and connection ports are formed in the mounting seats.