Haematococcus pluvialis contains a large amount of astaxanthin, and its astaxanthin content can reach 3% of dry weight, so it is known as the best biological raw material for producing natural astaxanthin in nature. Astaxanthin is a kind of carotenoid, which has a powerful ability to resist free radicals and is the most powerful antioxidant found in nature. The high-pressure homogenization processing is most suitable for the crushing of the chlamydospores of haematococcus pluvialis and the extraction of astaxanthin. Through the processing of wall-breaking technology, the astaxanthin in haematococcus pluvialis can be absorbed by the human body.