Solo travel in China is very doable. Here is what actually matters for safety, confidence, and logistics.

Most solo travelers find Chinese cities safe regarding violent crime. The more common issues are practical: getting lost, payment friction, taxi confusion, and occasional tourist-area scams (tea ceremony or art student styles in some hotspots).
Use normal urban caution with belongings on packed transport. Choose busy restaurants and official ticket channels.
Share your live hotel name with someone at home. Use DiDi rather than unmarked cars. Keep power banks charged. Avoid overly empty underpasses late at night if you feel uncomfortable — main streets are fine in most central districts.
Many solo visitors book a companion for food nights, Great Wall logistics, or first-day orientation. It is social without being a big tour group, and it removes language pressure.
Many women travel solo in China without issues. Use standard big-city precautions and official transport options.
Not required, but private companions are popular for confidence, food, and landmark days.