The invention relates to an automatic quantitative filling and conveying device. The automatic quantitative filling and conveying device comprises an integral frame 6, a container storage box 7, an executing mechanism 8, a water pump system 9, an electric control system 10, a sensor assembly 11 and a positioning base part 12, the container storage box 7 is located in the integral frame 6, the executing mechanism 8 is provided with a rotating mechanism 8a, a moving assembly 8b and an electric claw 8c, the executing mechanism 8 is installed inside the integral frame 6 and is connected with the integral frame 6 in a fastening mode, and the rotating mechanism 8a is a basic mechanism of the executing mechanism 8 and penetrates through and is installed on the integral frame 6 in a fastening mode. According to the automatic quantitative filling and conveying device, a mechanical mechanism, a sensor, a motor, a driver and a controller are used in cooperation, manual work can be replaced for quantitative preparation of liquid, the problem that the capacity of an injection cup is insufficient or redundant during manual preparation is solved, unnecessary waste is avoided, and the automatic quantitative filling and conveying device has the advantages of being capable of achieving quantitative preparation of the liquid and convenient and fast to use.