The invention relates to an auxiliary tool for manufacturing a cable head. The auxiliary tool is characterized in that the auxiliary tool comprises a supporting frame, the supporting frame is covered with a waterproof cover, adjustable cable clamps are further arranged on the supporting frame, and therefore a cable to be machined can be fixed into the supporting frame in the waterproof cover. It is proved on trial that after the auxiliary tool for manufacturing the cable head is used, the cable head manufacturing process can be rapid and convenient, the auxiliary tool is wide in application range and can meet the requirements of cables in different types, and the percent of pass can be improved to be approximately 100% when the cable head is manufactured in windy and rainy days.