The playard includes a frame body and a bassinet detachably mounted on the frame body. An opening and a cover that covers onto the opening are configured at the bottom panel of the bassinet. When the cover opens relative to the opening, a folding device at the bottom of the frame body can be operated by a user's hand sticking into the opening for folding the playard to a smaller size without the need of removing the bassinet. A height adjustment device is further configured on the side panels of the bassinet for adjusting the height of the bassinet by selectively setting the bassinet in a first using state that has a shallow depth or in a second using state that has a deep depth.