Objective: To explore demand differences for assistant devices among the disabled in different conditions, find out the root causes, and offer the foundations for the future development planning of the policy and the service. Methods: Based on a national special survey of the basic service and demand, 6188 cases about disabled and suspected disabled children was collected from a district with 9 streets (towns). The questionnaire included basic information, disability categories, level of disability, degree of education, etc. The SPSS 22.0 software was used for data analysis. Results: The disabled demand for assistant device was affected definitely by different ages(P=0.024), disability categories(P<0.001), level of disability(P<0.001), employment situation（P=0.002） and whether access to assistant devices in the previous year(P<0.001), while gender(P=0.805), marital status( P=0.459), social security category (P=0.195), educational level(P=0.451) made no evident impact. Conclusion: Disability in vision, hearing, limb, and multiple can increase the potential needs for assistive devices. There is higher demand in the disabled who was children or the aged, unemployed, severely disabled, acquired assistant devices in the previous year than others.