The invention discloses a heavy oil metering system and a method. The heavy oil metering system comprises a lower computer control device, and a remote upper computer. The lower computer control device is arranged at a transfer station of a heavy oil well for receiving a metering order and controlling the transfer station to execute the metering operation according to the metering order to obtain the metering data; the remote upper computer is connected to the lower computer control device through a wired communication mode and/or a wireless communication mode for transmitting the metering order to the lower computer control device and receiving the metering data. The heavy oil metering system solves the problem that the heavy oil data metering work in the prior art is low in efficiency, and reduces the labor intensity of the staff and improves the working efficiency.