The invention discloses a device applied to child cognition and development situation detection. The device comprises a pedestal and an external power supply, wherein motor supports are arranged on the two sides of the upper surface of the pedestal, an angle adjusting motor is arranged at the ends of the motor supports, a bed body is arranged at the end of an output shaft of the angle adjusting motor, a foot arranging plate is arranged at the bottom end of the bed body, a child development situation detection device and a child cognition detection device are arranged on the bed body, and one side of the lower surface of the bed body are connected with support feet through second electric telescopic rods. The device applied to child cognition and development situation detection can enable the bed body to be in a vertical standing state and a lying state through the angle adjusting motor, can be applied to infants and non infants at the same time, has a wide application range and convenience in detection, provides convenience for work of workers, can effectively monitor behavior information of children in a detection process through an all-dimensional visual sensor and can help medical workers with accurate detection results.