The utility model discloses a wax content test distillate oil collecting device, comprising a heating device, a distillation flask, a distillation flask catheter, a conical bottle, an ice-water mixture container, a rotary rubber plug, a glass delivery tube and a condensation tube; wherein, the heating device is arranged below the distillation flask; one end of the distillation flask catheter is connected with the distillation flask, and the other end of the distillation flask catheter is connected with the rotary rubber plug; the rotary rubber plug is connected with the condensation tube, the condensation tube is provided with a water inlet and a water outlet, meanwhile, the glass delivery tube is nested in the condensation tube and extends into the conical bottle, and the conical bottle is placed in the ice-water mixture container. By adopting the device, the air pressure in a system can be reduced, the test risk is reduced, meanwhile, gas leakage can be reduced, and the test precision is effectively improved.