百度地图开放平台 API

Baidu Maps Open Platform API provides in-China map services — maps, routing, POI search, coordinate conversion, real-time traffic; deep integration with Baidu ecosystem.

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Use it when

Large mainstream user base in China (built-in Baidu Search traffic)

Watch for

Professional navigation data accuracy slightly weaker than Amap

First check

Register developer account at lbsyun.baidu.com for AK. GET https://api.map.baidu.com/place/v2/search?query=restaurant&region=Beijing&ak=YOUR_AK

Auth

api_key

CORS

HTTPS

Yes

Signup

Protocol

REST

Pricing

freemium

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About this API

Baidu Maps is Baidu's electronic map product, second to Amap in China market share. vs. Amap: Baidu Maps' advantage is "broad mass adoption" — Baidu Search is China's top search engine; location/map queries from search naturally use Baidu Maps, so regular users use Baidu Maps frequently. Professional developer market is dominated by Amap (higher data accuracy). Baidu Maps Open Platform API covers similar scope to Amap: map rendering, geocoding/reverse, routing, POI search, coordinate conversion (Baidu uses BD-09 coordinate system, requires extra conversion from GCJ-02). Integrated by many local lifestyle / government / transit apps. Free quota (6000 calls/day+) sufficient for low-traffic scenarios; commercial use needs payment.

What you can build

1Baidu ecosystem product maps (Baidu Search, Baidu App)
2In-China navigation and routing
3Local search / nearby recommendations
4Logistics delivery tracking

Strengths & limitations

Strengths

Large mainstream user base in China (built-in Baidu Search traffic)
Integrated with Baidu Search POI data
Complete SDKs for mini-program / iOS / Android

Limitations

Professional navigation data accuracy slightly weaker than Amap
Sparse overseas data
Subject to national surveying law restrictions like Amap

Example request

Generic template — replace <endpoint> with the real path from the docs.

curl https://lbsyun.baidu.com/<endpoint> \
  -H "Authorization: Bearer $API_KEY"
# Some providers use X-Api-Key instead — verify in the docs.

Getting started

Register developer account at lbsyun.baidu.com for AK. GET https://api.map.baidu.com/place/v2/search?query=restaurant&region=Beijing&ak=YOUR_AK

FAQ

BD-09 vs. GCJ-02?+

GCJ-02 is the national survey bureau's offset from WGS-84. BD-09 is Baidu's additional offset on top of GCJ-02. Requires double conversion.

Technical details

CORS: ?HTTPS: YesSignup: ?Open source: No

Auth type: api_key
Pricing: freemium
Rate limit: 免费配额 6000 calls/天起；商业付费
Protocols: REST
SDKs: javascript, ios, android, mini-program