It's not illegal. The law only stipulates that the quality and size of non-motor vehicles need to comply with the law, and does not stipulate the dress of people driving non-motor vehicles. Therefore, it is not illegal to ride an electric car and wear slippers, but you need to pay attention to driving safety. Wearing slippers and riding an electric car is likely to cause traffic accidents. It is not illegal to wear slippers for electric cars. The law only stipulates that the quality and size of non-motor vehicles should comply with the law, and does not stipulate the dress of people driving non-motor vehicles. Therefore, it is not illegal to wear slippers for electric vehicles, but attention should be paid to driving safety. Because the driver wears slippers, the shoes and feet will not fit, and it will be easy to fall off, and the driver needs to put on slippers again after falling off, which will have potential safety hazards; However, some drivers wear slippers and sweat easily on their feet, which will make them slip. Drivers are prone to make mistakes when stepping on the brake pedal and accelerator pedal, which will lead to traffic accidents.

Legal basis: Road Traffic Safety Law of the People's Republic of China.

Article 18 Non-motor vehicles that should be registered according to law can only drive on the road after being registered by the traffic administrative department of the public security organ. The types of non-motor vehicles that should be registered according to law shall be stipulated by the people's governments of provinces, autonomous regions and municipalities directly under the Central Government according to local actual conditions. The size, mass, brakes, bells and night reflective devices of non-motor vehicles shall meet the technical standards for safety of non-motor vehicles.

Nineteenth driving a motor vehicle, should obtain a motor vehicle driver's license according to law. To apply for a motor vehicle driver's license, the driver's license conditions stipulated by the public security department of the State Council shall be met; After passing the examination, the traffic administrative department of the public security organ shall issue the motor vehicle driver's license of the corresponding category. Holders of overseas motor vehicle driver's licenses meet the driving license requirements stipulated by the public security department of the State Council, and can issue motor vehicle driver's licenses to China after passing the examination by the traffic management department of the public security organ. The driver shall drive the motor vehicle according to the quasi-driving type specified in the driver's license; When driving a motor vehicle, you should carry a motor vehicle driving license with you. Except the traffic administrative department of the public security organ, no other unit or individual may confiscate or detain the motor vehicle driver's license.