The visa you need will depend on your age and the type of study you want to study. An overview of the category of visa analysis and eligibility requirements is given below, but for more information, please visit Gov.UK website
You must apply for a student visa online using the official UK Government website (unless you apply from North Korea, in which case you can use a hard copy form).
You will apply up to three months before your expected date of travel to the United Kingdom. Your application date is the day of payment of the processing fee.
If all of your relevant papers are not in English, then you’ll need to have them translated. Each translated document must be dated and must contain the name and signature of the translator in order to guarantee that the translation of the original document is accurate.
You must have evidence of your knowledge of the English language while applying for a visa. Typically, this means passing a safe English language examination.
UK Visas and Immigration (UKVI) have minimum requirements for reading, writing, listening and speaking English, based on the level of education. Your educational organization (sponsor) will have specific English language criteria.
You can be interviewed by a UKVI officer as part of the visa application process. If you cannot have a clear conversation without a translator, you can be denied entry to the United Kingdom, regardless of the outcome of your English conversation.
You must also obtain a biometric residence permit (BRP) from UKVI as part of your application. You’ll need to make an appointment with UKVI to check your fingers and thumbs and take a digital photo of your face.