Do I need a passport for a day trip from Hekou to Vietnam Old Street?

You need a passport for a day trip. China citizens holding valid diplomatic, official and ordinary official passports are exempt from visas for entry, exit or transit in Vietnam, and the visa-free stay period shall not exceed 90 days from the date of entry. Those who stay in Vietnam for more than 90 days or engage in work, study, settlement, news reporting and other activities that require the prior approval of the competent authorities shall apply for visas before entering the country. China citizens with valid ordinary passports must apply for visas in advance (except for visa exemption). If they meet the relevant conditions, they can apply for visas on arrival. The Vietnamese Embassy in China issues DT (investment), DN (enterprise personnel), HN (conference), LD (labor), DL (tourism) and other visas. Vietnam has added LS (Lawyer Visa) and EV (Electronic Visa), and refined some visa types. According to the investment amount, the holding of labor license and the nature of business activities, the types of visas are refined, and the validity period of investment visas ranges from 1 year to1year.