To collect data at a high speed and display the picture of the photon position on the computer by the extreme ultraviolet (EUV) photon-counting imaging detector, a data acquisition circuit is designed. The principle of the photon-counting imaging detector based on position sensitive strip wedge anode is analyzed. The high-performance analog/digital (A/D) conversion chips are chosen to collect and convert the analog signals from the circuit with the peak holding block removed to digital signals under the control of the field programmable gate array (FPGA) chip. FPGA will process the received digital signals according to certain rules and send them to the computer by USB data transfer system. The developed software computes the data, draws the photon position picture according to the computed results and displays it. The experimental results show that the circuit system performs well with the highest sampling and converting speed of 2 MHz and the capability of 3-way simultaneous sampling. The image analysis shows that the picture has good linearity and 5 lp/mm spatial resolution. The circuit can collect the data and graph images fast and accurately, which completely meets the requirements of an EUV detector.