This project implements optical character recognition specifically for Chinese national ID cards. It uses Tesseract OCR with custom training data for digit and text recognition, along with OpenCV image preprocessing including grayscale conversion, inversion, dilation, and contour detection to locate and isolate ID number regions. The system extracts fields such as name, gender, ethnicity, birth date, address, and ID number from card images, with PaddleOCR integrated as an alternative engine for improved Chinese character recognition.