The invention relates to an environmental-
sanitation operation control method and
system and a washing and sweeping vehicle. The method comprises the steps that environmental-
sanitation images of environmental-
sanitation information reflecting the periphery of an environmental-sanitation vehicle are collected; the environmental-sanitation images are processed, and the parameters representing the quantity of to-be-cleaned garbage are estimated; and the parameters and the preset threshold values corresponding to all environmental-sanitation operation
modes are compared, and environmental-sanitation operation is conducted according to the determined environmental-sanitation operation
modes matched with the parameters. The collected environmental-sanitation images of the periphery of the environmental-sanitation vehicle are processed, the parameters representing the quantity of the to-be-cleaned garbage are estimated, and then the suitable environmental-sanitation operation
modes are determined through comparison of the estimated parameters and the threshold values of the environmental-sanitation operation modes to conduct environmental-sanitation operation. According to the environmental-sanitation operation control method and
system and the washing and sweeping vehicle, under the condition that a driver does not conduct control, the suitable environmental-sanitation operation modes are automatically adjusted according to the environmental-sanitation conditions, the environmental-sanitation operation effect is improved, the situation that attention of the driver is diverted for
operation mode adjustment is avoided, thus the driver can pay attention to driving, and the safety of the operation process is improved.