The invention discloses a mosquito repellent incense suction device comprising a rotary drum and a drug cylinder where chemical liquid is stored; the rotary drum rotates about its center as a shaft; multiple drug carrying disks are provided on the circumferential wall of the rotary drum; the bottoms of the drug carrying disks are planes and are provided with multiple drug carrying grooves. According to the mosquito repellent incense suction device adopting the above technology, after the drug carrying disks leave the chemical liquid, the chemical liquid in the drug carrying grooves do not flow out due to the capillary action but keep on staying in the drug carrying grooves and rotate along the rotary drum upwards; after the mosquito repellent incense base body touches with the chemical liquid inside the drug carrying grooves, the chemical liquid will quickly go upwards along the drug carrying grooves into the mosquito repellent incense base body and therefore the chemical spreading process is completed. By means of the mosquito repellent incense suction device, production devices can be simplified and the dissipation loss of chemical liquid is greatly reduced. the chemical liquid loss of the device is extremely small which is under 1%; besides, extremely low chemical spreading amount can be reached in the device so that the usage of kerosene or other solvents in the chemical liquid can be reduced by 50% to 80%. The invention also discloses a mosquito repellent incense spreading machine with the device.