The Lao Jia ("old" or "big" frame ) style of Chen family Taijiquan is believed to have been created by Chen Changxin from several preexisting boxing routines credited to Chen Wang Ting.

The movements of the Lao Jia style are larger than in other styles of Chen Family Taijiquan. They may also be said to be less complex. The posture feature a pronounced rotation of the waist and a "settling" into the final position of each movement before proceeding to the next.

In the Lao Jia style, it is said that the mechanics of Chan Si Gong are less externally apparent than in other styles. Lao Jia is considered to be the foundation of Taijiquan training in the Chenjiagou curriculum, and must be mastered before other forms, such as Xin jia can be learned.

The Lao Jia system contains two barehand solo routines: Yi lu ("first road") and Erlu ("second road"), as well as many weapons forms, pushing hands techniques, and auxiliary training exercises.

The Yi Lu form The Yi lu form consists of 74-76 postures, varying from teacher to teacher. The movements are predominantly "soft": that is to say the use of the technique of fa jing ("expressing energy") is found in less than twenty five percent of the routine. It is said that in the Yi lu form, the hands follow the motion of the body.

The Postures of Lao Jia Chen Jia Taiji Quan; Yi Lu

1. Preparing Form (Tai Ji Qi Shi)
2. Buddha's Warrior Attendant Pounds Mortar (Jin Gung Dao Zhui)
3. Lazily Tying Coat (Lan Zha Yi)
4. Six Sealing and Four Closing (Liu Feng Si Bi)
5. Single Whip (Tan Pien)
6. Buddha's Warrior Attendant Pounds Mortar (Jin Gung Dao Zhui)
7. White Crane Spreads Wings (Bai He Liang Chi)
8. Walking Obliquely (Xie Xing)
9. Brushing Knees (Lou Qi)
10. Stepping Three Steps (Shang San Bu)
11. Walking Obliquely (Xie Xing)
12. Brushing Knees (Lou Qi)
13. Stepping Three Steps (Shang San Bu)
14. Hidden Thrust Punch and Whirling Upper Arms (Yan Shou Hong Quan)
15. Buddha's Warrior Attendant Pounds Mortar (Jin Gung Dao Zhui)
16. Flinging Body (Pie Sen Quan)
17. Green Dragon Comes Out of Water (Ting Lung Chu Shui)
18. Double Pushing Hands (Shuang Tui Shou)
19. Fist Under Elbow (Zhou Di Kan Quan)
20. Whirling Upper Arms (Dao Juan Hong)
21. White Crane Spreads Wings (Bai He Liang Chi)
22. Walking Obliquely (Xie Xing)
23. Flashing the Arm (Shan Tong Bei)
24. Hidden Thrust Punch and Whirling Upper Arms (Yan Shou Hong Quan)
25. Six Sealing and Four Closing (Liu Feng Shi Bi)
26. Single Whip (Tan Pien)
27.Cloud Hands (Yun Shou)
28. High Pat on Horse (Gao Tan Ma)
29. Brushing the Right Foot (You Cha)
30. Brushing the Left Foot (Zuo Cha)
31. Kicking With the Left Heel and Following (Zuo Jiao Yi Deng)
32. Forward Twist Step (Qian Zang Ao Bu)
33. Punch the Ground (Zhi Di Chui)
34. Kicking with Two Heels (Ti Erh Qi)
35. Protecting the Heart (Hu Xing Quan)
36. Whirlwind Foot (Xuan Feng Jiao)
37. Kicking with the Right Heel and Following (You Yiao Yi Deng)
38. Hidden Thrust Punch and Whirling Upper Arms (Yan Shou Hong Quan)
39. Small Capturing (Shao Chin Na)
40. Embracing Head and Pushing Mountain (Bao Tou Tui Shan)
41. Six Sealing and Four Closing (Liu Feng Si Bi)
42. Single Whip (Tan Pien)
43. Forward Trick (Qian Zhao)
44. Backward Trick (Xou Zhao)
45. Parting the Wild Horse's Mane (Ye Ma Fen Zhong)
46. Six Sealing and Four Closing (Liu Feng Si Bi)
47. Single Whip (Tan Pien)
48. Jade Maid Works Shuttles (Yu Nu Chuan Shouo)
49. Lazily Tying Coat (Lan Zha Yi)
50. Six Sealing and Four Closing (Liu Feng Si Bi)
51. Single Whip (Tan Pien)
52. Cloud Hands (Yun Shou)
53. Waving Double Lotus (Shuang Bai Lian)
54. Shake Foot and Stretch Down (Die Jiao Da Cha)
55. Golden Rooster Stands on One Leg (Jin Ji Du Li)
56. Whirling Upper Arms (Dao Juan Hong)
57. White Crane Spreads Wings ( Bai He Liang Chi)
58. Walking Obliquely (Xie Xing)
59. Flashing the Arm (Shan Tong Bei)
60. Hidden Thrust Punch and Whirling Upper Arm (Yan Shou Hong Quan)
61. Six Sealing and Four Closing (Liu Feng Si Bi)
62. Single Whip (Tan Pien)
63. Cloud Hands (Yun Shou)
64. High Pat on Horse (Gao Tan Ma)
65. Crossed Feet (Shi Zhi Jiao)
66. Punch the Groin (Zhi Dang Chui)
67. Ape Touches Fruit (Yie Yuan Xian Guo)
68. Six Sealing and Four Closing (Liu Feng Si Bi)
69. Single Whip (Tan Pien)
70. Tame the Tiger (Fu Hu)
71. Stepping Forward to Form the Seven Star (Shang Bu Qi Xing)
72. Stepping Back to Ride the Tiger (Xia Bu Kua Hu)
73. Turn Back and Wave Double Lotus ( Zhuan Shen Shuang Bai Lian)
74. Head On Blow (Dang Tou Pao)
75. Buddha's Warrior Attendant Pounds Mortar ( Jing Gang Dao Zhui)
76. Closing Form (Tai Ji Shou Si)


The Postures of Lao Jia Chen Jia Taiji Quan;
Erlu (Pao Chui)

The Erlu form consists of 38-45 postures, varying from teacher to teacher (Chen Xiaowang lists 38, Chen Zhenglei 41, Wang Xian 45: I have used Wang Xian's list here). In contrast to the Yi lu form, the movements of Erlu, also known as paochui ("cannon fist") are predominantly "hard". Over seventy five percent of the form is concerned with fa jing. The Erlu form is characterised by it's unique footwork, including leaping, lunging, and stamping.

Chen Family Taiji Boxing; Second Routine (Cannon Fist)
1. Preparatory Form (Taiji Qi Shi)
2. Buddha's Warrior Attendant Pounds Mortar (Jin Gong Dao Zhui)
3.Lazily Tying Coat (Lan Zha Yi)
4. Six Sealing and Four Closing (Liu Feng Si Bi)
5. Single Whip (Tan Pien)
6. Protecting Heart (Hu Xin Quan)
7. Step Forward and Walk Obliquely (Jin Bu Xie Xing)
8. Turn Head and Pound Mortar Like Warrior Attendant (Hui Tou Jin Gong Dao Zhui)
9. Green Dragon Comes Out of Water (Qing Long Chu Shui)
10. Flinging the Body (Pie Shen Chuan)
11. Cutting Hands (Zhan Shou)
12. Punching the Groin (Zhi Dang Chui)
13. Turn Flowers Out and Brandish Sleeves (Fan Shen Wu Xiu)
14 Hidden Thrust Punch (Yan Shou Hong Chuan)
15. Move and Hinder with Elbow (Yao Lan Zhou)
16. Elbow Hits Heart (Chuan Xin Zhou)
17. Big Cloud Hands (Da Yun Shou)
18. Small Cloud Hands (Xiao Yun Shou)
19. Jade Girl Works Shuttles (Yu Nu Chuan Shou)
20. Ride Animal in the Reverse Direction (Dao Qi Lu)
21. Hidden Thrust Punch (Yan Shou Hong Quan)
22. Wrap Crackers (Guo Bian Quan)
23. Beast's Head Pose (Shou Tou Shi)
24. Splitting Pose (Pia Jia Zhi)
25. Hidden Thrust Punch (Yan Shou Hong Quan)
26. Tame Tiger (Fu Hu)
27. The Hitting of Rubbing Eyebrow Makes Red (Mao Men Hong)
28. Yellow Dragon Stirs Water Three Times (Huang Long San Jiao Shui)
29. Dash Leftward (Zuo Chong)
30. Dash Rightward (You Chong)
31. Hidden Thrust Punch (Yan Shou Hong Chuan)
32. Sweeping Leg (Shao Tang Tui)
33. Hidden Thrust Punch (Yan Shou Hong Chuan)
34. Linking Cannons (Quan Pao Quan)
35. Hidden Thrust Punch (Yan Shou Hong Quan)
36. Pound Crossed Wrists (Dao Cha)
37. Attack Twice with Left Forearm (Zhuo Erh Hong)
38. Attack Twice with Right Forearm (You Erh Hong)
39. Turning Head Cannon (Hui Tong Dan Men Pao)
40. TaiJi Cannons (Tai Ji Pao)
41. Twist Elbow (You Lan Shou)
42. Smooth Elbow (Shun Lan Shou)
43. The Cannon Out of the Bosom (Wuo Di Pao)
44. Go Straight with Left Palm into the Well (Hui Tou Jing Lan Zhi Ru)
45. Buddha's Warrior Attendant Pounds Mortar (Jin Gong Dao Zhui)
45. Closing Form (Tai Ji Shou Shi)