Thirty minutes. According to the relevant information of Shenzhen, it takes 30 minutes from Shenzhen North Station to Niuhu subway. It takes about 30 minutes by subway. Line 4 has been opened to Niuhu subway and directly to Shenzhen North Station. You don't need to change to the subway, it's about 10 station. The subway starts at 6: 30 in the morning, and the running time is 15 minutes, and the last train is 1 1: 30 in the evening.