Blasphemy law in Afghanistan is a rule that says people can get in trouble if they say or do things that are disrespectful to religion. People in Afghanistan are expected to follow Islam, which is the main religion in the country. If someone says something that goes against Islam, they can be punished. This might mean they have to pay a fine or go to prison. In some cases, people who are accused of blasphemy might even be killed. As a result, people in Afghanistan are often very careful about what they say and how they act, so they don't upset anyone. The blasphemy law can make it difficult for people to express their opinions or beliefs freely, which is an important part of being able to live in a fair and equal society.